... :white crystal powder or granular. 4)Package:25kgs/bag ,50kgs/drum Factory Price Zinc Chloride 96%,98% Min 1)Physical and ... overlay film knitted bag, N.W.50kgs Iron drum,N.W.50kgs galvanized iron drum Internal packing : Double layer high-pressure polyethylene ... air . the shelf period of galvanized metal pail, carton and rubber drum packing is 6 months ,composite woven bag is 2 months ...