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Electric Butt Welding Bi-Directional Triple Offset Butterfly Valve (D963H/W/Y-10/16/150LB), Find Details and Price about Butterfly Valve Butt Welding Butterfly Valve from Electric Butt Welding Bi-Directional Triple Offset Butterfly Valve (D963H/W/Y-10/16/150LB) - Kai Feng Valves Manufacturer Co., Ltd.