Hexagonal Carbon Steel Ball Valve Material:WCB,CF8(304),CF8M(316) Operated Way:Handle Design Standard :GB/T12224,GB/T8464Pressure-Temperature Rating:GB/T12224Face To Face Std:GB/15188.3End Connection Std:G,Rc,Rp,NPT,BSP,BSPT,DIN259/2999Test Standard:GB/T13927Material:WCB,CF8(304),CF8M(316)Operated Way:Handle Hexagonal Carbon Steel Ball Valve