ETP /WTP chemical, Dhaka Videos
Videos by ETP /WTP chemical in Dhaka. Some of chemicals. 1.Bio-(101) 2.Ferrous sulphet. 3 De -colour. 4.Polymer. 5.Alum. 6.Lime powder
Videos by ETP /WTP chemical in Dhaka. Some of chemicals. 1.Bio-(101) 2.Ferrous sulphet. 3 De -colour. 4.Polymer. 5.Alum. 6.Lime powder
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