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Highly Abrasion-Resistant Butterfly Valves for Water Liquid Powdery and Granular Materials Double or Single Flange Type Solenoid Butterfly Valve, Find Details and Price about Solenoid Butterfly Valve Wafer Butterfly Valve from Highly Abrasion-Resistant Butterfly Valves for Water Liquid Powdery and Granular Materials Double or Single Flange Type Solenoid Butterfly Valve - Jiangsu Zhengliang Marine Accessory Co., Ltd.