Guide to Cold Water Soluble Films
What is PVA Cold Water Soluble Films? PVA polyvinyl alcohol is a water-soluble material. It can be used to make a kind of pollution-free, non-toxic water soluble bag. PVA water soluble films can be dissolved in water, the formation of adhesive liquid can gradually penetrate into the soil, increase the soil group adhesion, permeability and […]
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