Gate Valves, Brass Ball Valves, Check Valves manufacturer / supplier in China, offering Cast Iron / Ductile Iron Double Flange Butterfly Valve, ASME Double Eccentric Butterfly Valve with Painting Disc NBR Seat, Best Seller DIN3302 Epoxy Coated Ductile Iron Pneumatic Triple Double Eccentric Type Electric Actuator Flange Butterfly Valve and so on.