... molded granular product, used as a bed and electrostatic coating powder, can also be made into an aqueous dispersion ... , is currently the most ideal anti-corrosion materials.FEP lining ball valves for petroleum, chemical, dye, pesticide and ... development.FEP lining ball valve shell casting with casting, smooth appearance, high strength, contact with the corrosive medium with FEP lining bag, products ...