Design standard: API ,BS,DIN,GB Ends conntction:RF forged gate Valve Design standard: API ,BS,DIN,GBEnds conntction:RFClass: from 150lb ... : A105 LCB, LCC, WC6, WC9, C5, C12, CF8, CF8M, etc. Sealing material: F6, F310, CoCrA, Cu, MoNCL, alloy 20 al-bronze ...