Gate Valve, Globe Valve, Check Valve manufacturer / supplier in China, offering Rotary Disc Valve/Wafer Butterfly Valve, Flanged Carbon Steel Gate Valve with Handwheel DN100 Pn16, Steel Wedge Gate Valve 30s41nzhwith Retractable Spindle Pn 1.6 MPa Used for Installation as a Shut-off Device on Pipelines and so on.