Swimming Pool Chemicals manufacturer / supplier in China, offering CAS No. 42751-79-1 Polyamine Flocculants & Algaecide for Ponds Sewage Treatment, Pool Copper Based Complex Algaecide Algae Control Long Life Wintering, 42751-79-1poly (EPI-DMA) Cationic Polymers Polyamine 50% Flocculant Magnafloc and so on.