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Dn40-1200 Pn10/16 Wafer a & Lug & Flanged Type Butterfly Valve, Find Details and Price about Flanged Type Butterfly Valve Butterfly Valve from Dn40-1200 Pn10/16 Wafer a & Lug & Flanged Type Butterfly Valve - Xinhe County Xinghai Valve Co., Ltd.