Product Model:GLK073 Product Class:PN10 Product Size:DN50-DN800 Operated Type:Handwheel operated Wafer knife Gate Valves are designed for on-off and throttling applications. They feature a cast body in ductile iron or stainless steel. The gate could be SS304 or SS316 The stem and yoke could be SS420 or SS304 or SS 316. Epoxy baked. The paint is very fastness.