Refers to the basic degree of salt. Polyaluminum chloride is the main component that causes the changeable form of poly (aluminum chloride) to be OH ion. The me
In the middle of the filter you can take a number of ways, but when filtering is sometimes depends on your production methods in the factory, and some different
Or pickling and caustic wash. With low concentration of hydrochloric acid, hydrochloric acid can be poly aluminum chloride depolymerization
But to be slow, otherwise it will float the sediment, with a long rod on the shore to promote pipe suction, connecting a pipe, we are using that kind of water v
The formation of premature senility, dementia, denitrifying bacteria have a certain stimulating effect; when the mass fraction is high, then the performance of