Butterfly Valve, Flange Adaptor, Dismantling Joint manufacturer / supplier in China, offering Ductile Iron Casting Pipe Fitting Dismantling Joints with En545 En598, Durable Dismantling Joints for Efficient Pipe Connections Pn10/Pn16, DN40-DN1000 Ductile Cast Iron Flanged Dismantling Joints-ISO2531 and so on.