Depressant, Polymer Polyacrylamide, Mineral Processing manufacturer / supplier in China, offering Collector YX091 : Selective Low-Dosage Flotation Agent for Cu-Au-Ag Sulfides with Frothing, D421B — High-Selectivity Depressant for Optimized Flotation Performance, D421B — High-Performance Depressant for Enhanced Mineral Flotation and so on.