Polyaluminium chloride: PAC, water purification flocculant, the general use of polyacrylamide. Chongqing Ming Wang Chemical some.
But now many small factories have not reached the content of the national standard, especially Gongyi there, so the price is very dead to kill now, then I would
Strong neutralization of colloids in water. B. C, the selective adsorption of dissolved substances, hydrolyzate on the water suspension of the excellent bridgin