knife gate vlave manual,gear, cylinder,electric Size from DN50-1800mm ISO,CE,API Knife gate valve, wafer type knife gate valve, Lug knife Gate valve.,flange Knife Gate Valve,Cast steel knife gate valve, Stainless steel knife gate valveSpecifications:Design and manufacture standard: GB/T, ANSI, JIS, DIN1). Pressure: 0.6-1.6 MP , 150Lb, 125LB2). Size: 50-1800mm, NPS: 2''TO 72'' inch3). Body, Bonnet ...