Poly Aluminium Chloride, Chlorine for Swimming Pool, PAM manufacturer / supplier in China, offering Wk-821 CZ-318 Cr-8863 Th103 Oil Bottle Grade Pet Chips, Plastic Material Wk-811 CZ-302 Cr-8839 Th104 Pet Chips, Wk-801L Th101 Th102b Water Bottle Grade Pet Chips and so on.