Gate ValveHandwheel Operated DN450 Pn10 Rubber Wedge Gate Valve China Factory Gate Valve Resilient Seat Gate Valve Ductile Iron Ggg50 Gate Valve Flanged Gate Valve, Find details about China Resilient Gate Valve, Gate Valve from Handwheel Operated DN450 Pn10 Rubber Wedge Gate Valve China Factory Gate Valve Resilient Seat Gate Valve Ductile Iron Ggg50 Gate Valve Flanged Gate Valve