Butterfly Valve, Flange Adaptor, Dismantling Joint manufacturer / supplier in China, offering DIN BS ANSI Flange DN50-600 DIN3202 BS5163 F4 Gate Valve Brass Bonnet Di Body Resilient Seat Check Valve/Control Valve/Water Valve/Gate Valve, Ductile Iron Cast Iron Socket Ends Non-Rising Stem Resilient Seated Gate Valves, Ductile Iron PVC Socket Ends Non-Rising Resilient Seated Sluice Gate Valve and so on.