V-Ray Instrument Co., Ltd., Shenzhen Videos

Videos by V-Ray Instrument Co., Ltd. in Shenzhen. V-Ray is one of best manufacturer of X-ray fluorescence spectrometers, used for the elements analysis

V-Ray Diamond Tester - 5 seconds to determine whether it is a natural diamond！

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V-Ray Diamond Tester - 5 seconds to determine whether it is a natural diamond！ www.vrxrf.com

V-Ray Handheld XRF gold tester, quickly show the result in 3 seconds, very easy to operate. please contact us for more information. www.vrxrf.com