1.Manufacturer of Polyaluminium Chloride (PAC) 2,Best quaity with competitive price 3,Light yellow powder 4,Free sample Polyaluminium ... wide PH range of 5.0~9.0, and the best is between 6.5~7.6. 1) Purification of river ... ) Purification of the waste water in printing and dyeing industry, leather industry, brewage industry, meat-processing industry, coal-washing, metallurgy industry ...