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Pn10/Pn16 Double Eccentric Flange Butterfly Valve with Gear (SS304 Seat), Find Details and Price about Double Eccentric Flange Butterfly Valve Flange Butterfly Valve from Pn10/Pn16 Double Eccentric Flange Butterfly Valve with Gear (SS304 Seat) - Hebei Peng Guang Valve Trade Co., Ltd.