*Type: all kinds of knife gate valves. *Specification: DN50-900mm / PN1.0-2.0MPa / 150LB. *Material: ASTM A351 CF8, CF8M, CF3M, STL, DAG, PTFE, CR13, TSP and WCB. *Standard: Matching standard from China, Japan, USA, Germany and France, which include GB, JB, JIS, API, ANSI, DIN and NF.