... 3.CNC lathe process 4.API&ISO certification socket banded,standard wall,sch40.As the professional stainless steel pipe fittings manufacturer ... &ISO7/1Dimension confirm toISO 4144,SP114EN-10241,JISPressure Class150 LBSMaterial reference standardASTM A351-CF8M/1.4408ASTM A351-CF8/1.4401ASTM A216 ... ,316L,301,430ETCSize1/8”-4”Design drawings: Samples: socket banded,standard wall,sch40