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Gear-Operated, High-Torque, Precise-Positioning, Manual-Control, Stable-Drive, Easy-to-Adjust Fully Welded Ball Valve, Find Details and Price about Fully Welded Ball Valve Flanged Full-Welded Ball Valve from Gear-Operated, High-Torque, Precise-Positioning, Manual-Control, Stable-Drive, Easy-to-Adjust Fully Welded Ball Valve - Zhongxin Valve Co., Ltd.