1,Material:Carbon Steel 2,Standard:ASME, DIN, BS, JIS, JB, GB, 3,Cert: ... B16.36,DIN 86341-2000, DIN2505material Carbon steel(ASTM A105, Q235,A350LF2,A350LF3,)Stainless steel(ASTM A182 F304, F304L,F316,F316L,F321,F347,F310F44F51 ... , A182, F43, A276 S32750,A705 631,632,A961, A484,Alloy steel(ASTM A694 F42,F46,F52,F56,F60,F65,F70, A182 F12 ...