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Copper-Plated, Noise-Reducing, Fine-Control, Tough-Construction, and Excellent-Quality Fully Welded Ball Valve., Find Details and Price about Fully Welded Ball Valve Flanged Full-Welded Ball Valve from Copper-Plated, Noise-Reducing, Fine-Control, Tough-Construction, and Excellent-Quality Fully Welded Ball Valve. - Zhongxin Valve Co., Ltd.