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Waste Water Treatment Wwtp Belt Filter Press Solid-Liquid Separation Polyester Sludge Machine for Industry 0.8%- 1.5% 70%-85%, Find Details and Price about Belt Press Wwtp Hot Sell Gravity Rotary Drum Thickening Belt from Waste Water Treatment Wwtp Belt Filter Press Solid-Liquid Separation Polyester Sludge Machine for Industry 0.8%- 1.5% 70%-85% - Jiangsu Boe Environmental Protection Technology Co., Ltd.