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Biological Waste Treatment Filler-Type of Bio-Active Carrier (MBBR) (Φ 25× Φ 10), Find Details and Price about Active Bio-Suspension Filler Mbbr from Biological Waste Treatment Filler-Type of Bio-Active Carrier (MBBR) (Φ 25× Φ 10) - Shanghai Dubhe Environmental Protection &Technology Co., Ltd