Gate ValveDN250 Pn16 DIN F4/F5 Handwheel Operated Gate Valve Ductile Iron Ggg50 Rubber Wedge Resilient Seat Gate Valve Water Gate Valve China Factory Sluice Gate Valve, Find details about China Resilient Gate Valve, Gate Valve from DN250 Pn16 DIN F4/F5 Handwheel Operated Gate Valve Ductile Iron Ggg50 Rubber Wedge Resilient Seat Gate Valve Water Gate Valve China Factory Sluice Gate Valve