... Gate Valves, China manufacturer, factory, mill, supplier, cheapFour-column Type Knife Gate ValveFour-column Type Knife Gate Valve that includes soft seal and hard ... : PN10Material: cast steel, stainless steelConnection: waferGate: 2Cr13, 201, 304, 316LSealing type: WPacking seal: PTFEMedia: swage, power, paper pulp, ore pulp