... ,Q235 ect. 2.Size:DN15-DN2000 3.Standard:ANSI,ASTM,MSS,JIS,DIN,EN HY carbon steel Welding ... inquiry. 1. StandardANSI,ASTM,JIS,DIN,GB etc.2. TypeSlip On Flange, Flat Face Flange, Socket Welding ... Blind Flange, Non-standard flange ect.3. Size1/2-78 inch (DN15-DN2000)4. MaterialCarbon Steel Material ... : A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.8 ect.5. Used forpetroleum, ...