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High Charge 80% High Molecular 18-22 Millions Weight Cationic Polyacrylamide PAM Flocculant for Solid/Liquid Separation, Find Details and Price about Municipal Wastewater Flocculant Sludge Dewatering Flocculant from High Charge 80% High Molecular 18-22 Millions Weight Cationic Polyacrylamide PAM Flocculant for Solid/Liquid Separation - Henan Hangrui Environmental Protection Technology Co., Ltd.