... ,PN25,PN40StandardASME B16.5, ASME B16.47, ASME B16.36,DIN 86341-2000, DIN2505 Carbon steel(ASTM A105, Q235,A350LF2,A350LF3 ... .Special design available according to requirement2.anti-corrosion and high-temperature resistant with black painting3.All the production process are made ...