... smelting process of wastewater treatment, steel and stone processing plant for the wastewater treatment, etc Product features 1, respectively, ... unclean? Nature choose corresponding models, dehydrated not glue the filter cloth, pressure filtration when not inattentive, high efficiency. 2 ... paper, to drawings, advertising paper, paper. 4, used for oilfield chemical agents. non-ionic Polyacrylamide ...