Metrex Valve Corp

Metrex Valve Corp

Metrex is the most trusted manufacturer of refrigeration and heat transfer control valves and regulators in the world.

When a system requires durable flow control to hold precise refrigerant temperature and pressure through a wide range of operating conditions while maintaining peak operating efficiency, successful project managers and engineers turn to Metrex Valve! They count on the "set and forget" reliability. For over 60 years, Metrex has designed and manufactured innovative pressure and thermostatic actuator

12/04/2023

What do you need to consider when selecting the right Metrex Valve for the job? This month, we’ll share some common factors that should be taken into account.

First, is your application using marine or fresh water?

Our commercial valves apply to most freshwater uses, including river water. However, if brackish or sea water is being used for cooling or heat exchange, a marine designation is indicated.

Got more questions? Reach out to our friendly, knowledgeable customer service team for help at (800) 266-4027.

metrexvalve.com/how-to-select-a-metrex-valve

11/30/2023

E-commerce shopping at Metrex Valve!

When our clients know exactly what they need and have to have it fast, they want ordering to be as easy as possible. Our online store makes ordering from a selection of our most popular valves simple—just start by clicking the “shop now” button.

Of course, if you have questions, our helpful customer service department is standing by, as always, to help you find the right valve for your application.

Check our updated website for our shop and other features that make it easier than ever to get the top valves in the industry!

metrexvalve.com

11/28/2023

Are you tired of using products that seem poorly constructed and flimsy? Do you hate replacing critical components because their manufacturers don’t allow you to repair them?

At Metrex, we don’t believe in disposable parts. Metrex Valve fully supports every valve we make with rebuild kits so you can get the replacement parts you need to maintain and optimize the efficiency and life of your equipment. You can install our valves with confidence, knowing that we’ll be there to help you keep them operating for as long as you need.

To find out more, check out the link at our updated website or call (800) 266-4027.

metrexvalve.com/valve-rebuild-kits

11/27/2023

What are our products made of?

Metrex Valve produces many valves for some of the most demanding applications. Materials we use to ensure consistent performance and reliability include brass, 300 series stainless steel, and cast iron for commercial and industrial freshwater applications; bronze alloy, NiCu (Monel®) CuNi, and high-performance stainless-steel alloys for marine saltwater service. Picking the right material for the job is only one of the ways we ensure that our valves deliver the “set-and-forget” reliability that Metrex is known for.

To learn more about our extensive selection of products, start by clicking the link below.

metrexvalve.com/products

11/23/2023

Happy Thanksgiving! From everyone here at Metrex, we wish you a wonderful holiday full of all good things and friends and family to share it with.

11/22/2023

What are some applications for Metrex Valves?

We produce a wide range of valves for:
✅Industrial Processes
✅Small Refrigeration
✅Commercial Marine
✅US Navy
✅Nuclear Power HVAC
✅Commercial HVAC
✅High Pressure Regulating Valves for HVAC

And if we don’t already have a valve that fits your needs, our team can customize a solution to your exact specifications, supported by a complete test facility.

To learn more about how Metrex’s self-contained, self-powered, and self-regulating valve solutions can save energy and money, click the link below.

metrexvalve.com/applications

11/21/2023

Our website is new, but our quality is timeless!

Metrex Valve has designed and manufactured innovative Pressure, Thermostatic, Electric, Electro-Hydraulic Actuated valves, HVAC Water Regulating, and Seawater Condenser Regulator Valves for over 60 years. Our dedication to consistently supplying leak-proof, set-and-forget reliability throughout the years has ensured that we keep up with the latest design, production methods, and equipment.

To learn more about how Metrex Valve can help reduce costs, optimize efficiency, and extend the life of your capital equipment, check out our updated website or call us at (800) 266-4027.

metrexvalve.com/about-us

10/31/2023

Metrex extends a Happy Halloween to its friends and customers!

10/26/2023

Have you got questions about Metrex Valve’s products or how they can be used in your application? We’re happy to field your questions to help you find the right solution. Here are some more examples of frequently asked questions we’ve gotten.

Q: When servicing a valve, do I need to shut down the system entirely?
A: No, you just need to isolate the water supply.

Q: Can I install my valve upside down, downstream, upstream, or inside out?
A: Please see our About Our Valves page on our website or the Install Schematics PDF pages linked to each valve for exact details for appropriate installation.

Q: Can I buy valves directly from Metrex?
A: Yes—call our Customer Service Department at 1-800-266-4027, use our Contact form, or purchase from our online store.

Check out this link for the answers to more frequently asked questions—or if you have a question you don’t see here, reach out! The quality of Metrex’s products is equaled only by our dedication to reliable customer support.

metrexvalve.com/frequently-asked-questions

10/23/2023

Metrex Valve doesn’t just provide superior US-made valves and actuators—we stand behind every product we make with responsive customer service. This week, we’re sharing answers to some commonly asked questions we get.

Q: How do I size a valve?
A: If you know how many gallons per minute (gpms) you need, divide it by the valve flow coefficient squared (Cv2).

Q: Do you have valve repair kits?
A: Yes! Call our Customer Service Department at 1-800-266-4027, and they’ll gladly help you find the needed kit.

Q: When I replace bellows in my valve, do I need gaskets?
A: No, you don’t—there are no gaskets. Isolate the water supply, unscrew the old bellows, and replace them with new bellows.

Got a question about one of our valves or actuators? Metrex Valve has answers. Click here to learn more.

metrexvalve.com/frequently-asked-questions

10/20/2023

Why are water-regulating valves critical to indoor agriculture?

Of course, water must get to plants, and valves are an integral part of any irrigation system. However, your HVAC system can play just as instrumental a role in the success of an indoor farming operation.

Cleanliness is critical to keeping pests and diseases out, from seed to harvest and packaging. HVAC can be set to keep the air inside at a slightly higher pressure than outdoor air, continually preventing potential contaminants from entering the grow space. Metrex Valves’ products, designed to maintain peak operating efficiency with minimal maintenance, can keep your HVAC system running precisely as needed to maintain an optimal growing environment.

To learn more about the durability and flexibility provided by Metrex Valve’s products, click the link below.

metrexvalve.com/blog/hydroponic-grow-air-conditioner

10/16/2023

Are the valves you use up to military standards?

Metrex’s Seawater Condenser Regulating Valves, offered with Pressure Actuators and Electric Actuators, are fully qualified for US Navy use. Our seawater-resistant solutions deliver precise flow control over various loads and seawater temperatures, with optimized lift vs. Cv opening characteristics for better performance at high turndown ratios.

As with all our valves, our proven operating and seal technologies offer “set and forget” integrity and reliability. To learn more about Metrex’s US-made valves and actuators and how we can provide the right solution for your application, click the link below.

metrexvalve.com/applications/military-marine-hvac-valves

10/13/2023

For over 50 years, Metrex Valves has been the standard in the industry for:
✅ Pressure Actuated Valves
✅ HVAC Water Regulating Valves
✅ Thermostatic Actuated Valves
✅ And now Electro-Hydraulic Regulated Valves
Our name is synonymous with precise control in a wide operating environment for HVAC water regulating, high water pressure systems, seawater condenser regulation, and refrigeration and heat transfer applications.

Why do our customers rely on us? We don’t just offer high-quality off-the-shelf products—we also customize solutions to your exact specifications in a friendly, collaborative environment supported by a complete test facility. Our custom designs and products are made in a wide variety of materials to handle an extensive range of loads and temperatures, and all are manufactured to our standard of “set and forget” integrity and reliability.

To learn more about how Metrex can provide the US-made valves and actuators you need, click the link below.

metrexvalve.com/applications/engineered-valve-solutions

10/11/2023

What gives Metrex Valve’s Thermostatic Actuated Valves their high-level reliability and uniform response?

Our sensing bulbs are precisely charged with appropriate refrigerants, sealed, and thoroughly tested for leak-free, long-lasting, uniform operation. Our valves’ response is unaffected by aging, giving it long-term reliability you can count on. Other thermostatic control methods just don’t compare.

Best of all, Metrex Valves are proudly manufactured in the US and fully supported with spare parts for easy maintenance, eliminating supply chain hassles and expensive delays. Click the link below to learn more about how Metrex Valve can support your industrial operation or factory.

metrexvalve.com/applications/refrigerant-head-pressure-temperature-control-valves

10/09/2023

The last thing your commercial food operation needs is failing refrigeration systems or icemakers. If you want to take your cooling and icemaking systems off the list of things you need to worry about, use Metrex Pressure Actuated Regulating Valves.

What makes our valves perfect for commercial food industry applications? They’re designed to work optimally under tough conditions to protect your investment with service-free operation. Our high-performance designs are ideal for municipal water, and our hardened seat is durable enough for high-pressure drops. We save you time, energy, and money and reduce water consumption. Our valves are manufactured to fit your requirements, with custom designs and products made from various materials available.

To learn more about why Metrex stands behind the “set and forget” reliability of our US-made valves and actuators, click the link below.

metrexvalve.com/applications/refrigeration-water-regulating-valve

10/06/2023

Did you know it’s easier to shop for quality Metrex valves than ever before?

Along with our new website, we’ve launched an online shop front featuring some of our best products. Now, anyone can order directly, enjoying the same service and high standard of reliability Metrex Valve has always provided to our customers.

Not sure what part to purchase for your HVAC, refrigeration, chemical transport, shipping, or other application? The experts at Metrex Valve are available by phone or email to help you determine the correct parts for your project.

For more information about our valves and actuators, proudly made in the USA, click the link below.

metrexvalve.com/products

10/04/2023

Has your factory’s production been slowed or even halted while you wait for parts from overseas? End your supply chain woes with US-manufactured Metrex Valves.

When your manufacturing process requires consistent and precise refrigeration or heat transfer control, Metrex Valve’s Pressure Actuator Valves and Thermostatic Actuator Valves can handle the widest range of conditions, ensuring consistently accurate results. We offer a variety of actuators perfect for industrial solutions and factories, including custom designs and products made in a wide variety of materials. Our valves are designed to maintain peak operating efficiency and are available from 5°F to 230°F temperature ranges.

Check out the link below to find out how Metrex’s self-contained, self-powered, and self-regulating valve solutions can keep your production running smoothly.

metrexvalve.com/applications/refrigerant-head-pressure-temperature-control-valves

10/02/2023

Do you need to install or replace HVAC equipment in your industrial or commercial building, and you’re dreading the seemingly inevitable delays, budget overruns, and technical problems you’re sure will come? Plan for success instead of headaches. Metrex has the quality American-made valves, spare parts and knowledge you need to complete the project on time and within budget.

With the industry's widest variety of HVAC water-regulating valves, Metrex Pressure Actuated Valves provide the most design flexibility in air conditioning for commercial or industrial buildings. Our valve solutions are completely self-contained, self-powered, and self-regulating for “set and forget” integrity and reliability. In addition, Metrex Valve products are designed to maintain peak operating efficiency, optimizing capital equipment life and saving you energy, money, and stress. All our valves are fully supported with spare parts for easy maintenance.

Click here to learn more about how Metrex Valve can provide long-term solutions for your commercial or industrial HVAC needs: metrexvalve.com/applications/commercial-industrial-building-hvac

09/29/2023

Whether your manufacturing process requires consistent and precise refrigeration or heat transfer control, Metrex Valve Pressure Actuator Valves and Thermostatic Actuator Valves will handle the widest range of conditions, ensuring the right results every time. With complete self-contained, self-powered and self-regulating valve solutions, we offer custom designs and products made in various materials.

Metrex Thermostatic Actuator Valves are designed to maintain peak operating efficiency and are available from 5F to 230F temperature ranges. We have a variety of sensing bulbs for insertion or externally attached for temperature sensing. Valves come standard with a six-foot capillary tube that connects the sensing bulb to the valve. Up to twenty-foot capillary connecting tubes are available.

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com

09/27/2023

The global population is predicted to reach 9.7 billion by 2050, and to feed everyone, it’s estimated that global food production will need to increase by up to 70% in the next 30 years. Yet $10 billion USD worth of crops are lost each year due to worsening extreme weather conditions, according to research at The Earth Institute at Columbia University.

These weather extremes, combined with the unpredictability of weather systems and seasons, have led many in the agriculture business to consider indoor farming. However, indoor farming is not without risk, and airflow is one of the main conditions to consider. HVAC systems are vital in ensuring indoor crops make it to market.

In turn, our valves at Metrex Valve play a vital role in ensuring industrial HVAC systems run at peak performance at all times. Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com/blog/industrial-hvac-for-indoor-farming-and-greenhouses

09/25/2023

Metrex provides The US Navy with qualified valves

Metrex Seawater Condenser Regulating Valves are offered with Pressure Actuators and Electric Actuators and are fully qualified for US Navy use. Seawater resistant, our solutions deliver precise flow control over various loads and seawater temperatures. Metrex Valve offers optimized lift vs. Cv opening characteristics for better performance at high turn-down ratios

Metrex Valves delivers a complete, self-contained, self-powered, and self-regulating valve solution. We offer custom designs and products made in various materials to handle various environments. Proven operating and seal technologies deliver “set and forget” integrity and reliability. All valves are fully supported with spare parts for easy maintenance

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com

09/22/2023

Metrex Valves are ideal for small, hardworking refrigeration systems and ice-makers.

Cooling and ice-making systems in the commercial food industry use Metrex Pressure Actuator Valves because they are economical and dependable. By protecting your investment with the service-free operation, our high-performance designs are ideal for municipal water. Our hardened seat is durable enough for high-pressure drops, requiring less service. Metrex Water Regulating Valves save time, energy, and money and reduce water consumption.

Metrex Valve delivers a complete, self-contained, self-powered and self-regulating valve solution. We offer custom designs and products made in a wide variety of materials. Our valves are manufactured to fit your requirements. Proven operation and seal technologies deliver “set and forget” integrity and reliability. All valves are fully supported with spare parts for easy maintenance.

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com

09/20/2023

Nuclear Power – Metrex Valve has the experience
Reliable design is job one in the Nuclear Power industry. Metrex Valve has highly developed design and test capabilities to ensure a solution that works. Metrex Pressure Actuator Valves are ideal for raw and closed-loop treated water. For over 40 years, Metrex Valve has provided custom cooling and flow control valves to the nuclear industry.

Metrex Valve delivers a complete, self-contained, self-powered and self-regulating valve solution. We provide Nuclear ASME Sec lll and safety-related designs and products made in various materials. We manufacture our valves to fit your requirements. Proven operating and seal technologies deliver “set and forget” integrity and reliability. All valves are fully supported with spare parts for easy maintenance.

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com/blog/marine-valves-shipbuilding-industry

09/18/2023

A combination of scientific discoveries, technological advancements, environmental policies and politics will continue to affect the HVAC industry. Due to the global warming potential of many HFC refrigerants, the latest amendment to the Montreal Protocol, the Kigali Amendment, has proposed to phase down the use of refrigerants such as R-410A. In the meantime, homeowners replacing their aging air conditioning and heat pump systems with new R-410A equipment will know they are helping the environment and their wallets by purchasing a chlorine-free option. At the same time, these customers are potentially increasing the energy-efficiency level of the air conditioner or heat pump inside their homes.

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com/blog/r410a-hvac-refrigerant-systems

09/15/2023

Metrex Pressure Actuator Valves provide enormous design flexibility in air conditioning for commercial or industrial buildings. Applications include multi-story high-rise facilities requiring high water pressure service, leased space, and computer or telecommunication rooms. Our valves have water pressure-reducing valves, water regulating valves, r410a valves, water pressure-regulating valves, seawater condensing valves, and marine valves.

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com

09/13/2023

At Metrex Valve, we can help you find the right fit for your specific refrigerant needs. All valve sizes are multi-range valves applicable to various refrigerants. Our friendly experts are available to explain all our options and ensure that you have a safe, durable product ideally suited for your project. Here are a few tips:

• To increase the actuating refrigerant head pressure, insert a pin or hex key into the adjustment nut and turn counter-clockwise. To lower actuating refrigerant head pressure, turn the adjustment nut clockwise.
• Valves can be mounted in any position without affecting performance. However, for ease of adjustment, consider the accessibility of the adjusting nut.
• Do not disassemble the actuator. There are no user-serviceable parts inside the actuator.

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com/blog/high-pressure-refrigerant-valves-hvac-r410a-r22

09/11/2023

Metrex Valves joins the rest of the nation and the world in honoring and remembering those lost on September 11, 2001, and the countless more whose lives were changed forever that day.

From first responders to volunteer firefighters to regular people looking to do what's right, the courage they showed in the face of terror and their sacrifices will be remembered for the rest of this country's history.

#911

09/08/2023

Because HVAC units are such a critical part of indoor farming, the valves in these units must be of the highest quality, reliable, and flexible. Metrex Valve provides the widest variety of HVAC water regulating valves. The Metrex Pressure Actuating Valves provide design flexibility for usage in a wide range of settings, commercial and industrial, from multi-story high-rise facilities to large, sprawling indoor fields. Metrex Valve products are always designed to maintain peak operating efficiency, saving business energy and money while optimizing an equipment’s lifespan. We can offer our clients complete, self-contained, self-powered, and self-regulating valve solutions by manufacturing our valves to fit your requirements.

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com/blog/industrial-hvac-for-indoor-farming-and-greenhouses

09/06/2023

Indoor farming is a technique for growing various agricultural products: plants, produce, and livestock. New technologies and advancements in hydroponics are making it possible to grow crops without pesticides, soil, or even natural light. Additionally, since indoor crops can be stacked vertically, there's no need for vast tracts of land. Lettuce, peppers, tomatoes, herbs, cucumbers, potatoes, and eggplants are among the most popular plants grown on indoor farms. Flowers, ornamentals, and other crops are widely grown indoors. One of the hurdles to indoor farming is energy use. In the absence of sunlight, indoor operations have to rely on powerful artificial lights that use a lot of energy and produce so much heat that some indoor farms have to rely on air conditioning year-round. HVAC units thus play a pivotal role in large-scale indoor farming operations.

Click the link below to learn more about Metrex Valve and how our products can best serve you.

metrexvalve.com/blog/industrial-hvac-for-indoor-farming-and-greenhouses

09/04/2023

Metrex Valve understands well that labor is what creates value and that a strong workforce is key to a healthy, prosperous country.

Today, we celebrate Labor Day to honor the working people of our country and the world and contemplate how the lives of working people can be improved while ensuring that their roles, no matter how large or small, are respected.

Let us know what Labor Day means to you in the comments below!

08/31/2023

Metrex Valve manufactures valves for heat exchange control, including water-cooled HVAC for commercial, industrial, marine, military shipboard and nuclear service. Includes standard and custom self-contained self-operated designs in both direct-acting and pilot-operated models offered from 3/8 in. thru 8 in. line sizes.

Control of cooling media (water, glycol or seawater) can be affected by refrigerant pressure, thermostatically actuated and electrically actuated models for HVAC, refrigeration and other heat exchange applications. Construction materials include brass, 300 series stainless steel and cast iron for commercial and industrial freshwater applications; bronze alloy, NiCu (Monel®) CuNi and high-performance stainless steel alloys for marine saltwater service.

Standard & high-pressure models (for both water side and refrigerant side service) are available.

metrexvalve.com

08/29/2023

Some Frequently Asked Questions about Metrex Valve:

Q. How do I size a valve?
A. If you know how many gpms you need, divide it by the Cv squared (Cv2). Or, check out one of the following on our website: Metrex Matrix, About Our Valves or Sizing A Valve.

Q. Do I need to shut down the system?
A. No, isolate the water supply.

Q. Can I buy valves directly from Metrex?
A. Yes - Call our Customer Service Department at 1-800-266-4027 or see our Contact Us page.

Q. Do you have a distributor in my area?
A. Call our Customer Service Department at 1-800-266-4027 or see our Contact Us page.

Read and find out more on our website below.

metrexvalve.com/frequently-asked-questions

08/25/2023

Metrex Valve, located in Southern California, produces made-in-America HVAC control valves that are self-contained, self-powered, and self-regulating. We offer quality engineering and careful customization for precise marine, commercial, and industrial water-cooling and control applications. The value of our product is not just in its pricing but in the longevity and durability of every valve. Additionally and most importantly, our customer and technology support is like no other.

Our staff is just a phone call away for all field reps and technicians, and we are always on standby to answer questions when they arise. The consistency in the quality of our products is so high we are endorsed by both the US military and the US Navy. We provide this superior value, quality, and service to each and every client with whom we work both domestically and internationally.

metrexvalve.com

08/23/2023

Metrex Valve manufactures valves for heat exchange control, including water-cooled HVAC for commercial, industrial, marine, military shipboard and nuclear service. Metrex Valve are experts in standard pressure refrigerant valves (R22 refrigerant) and high refrigerant pressure models (R410a refrigerant).

Some of the high-pressure valves have been tested to 2300 PSI, showing durability and robust functionality. “Our valves are really built differently, our innovation team at Metrex Valve has extended our product range to include high-pressure valves guaranteed to work up to 650 PSI but tested to 2300 PSI,” says Doug Jorgensen, President of Metrex Valve.

Learn more about our services here: metrexvalve.com

08/21/2023

Metrex’s extensive product line of military-qualified marine service HVAC valves continues to deliver complete self-contained, self-powered, and self-regulating refrigerant pressure actuated valve solutions as well as precision microprocessor-controlled electrically actuated valves. Both pressure and electric actuation type valves provide precision flow control for optimum HVAC chiller or process control.

Our reliable, seawater-resistant valve solutions deliver precise flow control over various loads and seawater temperatures. Metrex valves offer optimized lift vs. Cv opening characteristics for optimum, stable performance even at difficult high turn-down ratios. Metrex’s electric actuated qualified valves include both Electro-Hydraulic linear Globe Style Actuators and ¼ turn Electric Rotary Style Actuators.

metrexvalve.com/blog/marine-valves-shipbuilding-industry

08/18/2023

The success of indoor organic hydroponic farms is integrally linked to partnering with the right companies to create an ideal growing environment design. Meeting the highly specific demands of an organic hydroponic farm environment through temperature, humidity, light and process control is critical to success.

Working with a reliable HVAC system is critical and ensuring the valves on those HVAC units function properly is equally important. To learn more about the durability and flexibility offered by our products at Metrex Valve, visit us online.

metrexvalve.com/blog/hydroponic-grow-air-conditioner

08/16/2023

It was once common wisdom that companies could get a better deal on goods and products from abroad. Still, the devastating cost of shipping delays and idle production lines forces companies to reevaluate that belief.

At Metrex Valve, which has been designing and manufacturing valves in Southern California for over 60 years, we know that companies choosing an industry-leading U.S. manufacturer for their supply needs can rely on quality, timely delivery, custom engineering, and sustainability for demanding applications.

metrexvalve.com

Want your business to be the top-listed Equipment Service in Glendora?
Click here to claim your Sponsored Listing.

Videos (show all)

Metrex Valve understands well that labor is what creates value and that a strong workforce is key to a healthy, prospero...
Metrex Valve manufactures valves for heat exchange control, including water-cooled HVAC for commercial, industrial, mari...
Metrex Valve, located in Southern California, produces made-in-America HVAC control valves that are self-contained, self...
Metrex’s extensive product line of military-qualified marine service HVAC valves continues to deliver complete self-cont...
The success of indoor organic hydroponic farms is integrally linked to partnering with the right companies to create an ...
It was once common wisdom that companies could get a better deal on goods and products from abroad. Still, the devastati...
Metrex Valve has been designing and manufacturing innovative valves for various applications under the most demanding co...
Learn how Metrex Valves Work: A two-way valve brings fluid in one way and out another. Three-way values either mix by br...

Telephone

Address


505 S Vermont Avenue
Glendora, CA
91741

Opening Hours

Monday 6am - 4:30pm
Tuesday 6am - 4:30pm
Wednesday 6am - 4:30pm
Thursday 6am - 4:30pm
Friday 8am - 12pm

Other Engineering Services in Glendora (show all)
PBS Engineers, Inc. PBS Engineers, Inc.
2100 E Route 66 Ste 210
Glendora, 91740

Consulting Electrical and Mechanical Engineers

Southwest Plastics Company Southwest Plastics Company
620 W Foothill Boulevard
Glendora, 91741

Southwest Plastics Company is a US-based manufacturer, specializing in molding thermoplastic and the