... , 321, 347, 904L, etcStandardANSI, ASTM, DIN, JIS, BS, ISO, GB, SH, etcSizeSeamless:1/2"~ 24"; Weldment: 26"~ 72"ThicknessSch5S-Sch160, STD ... SCH 160,XS,XXSConnectionButt WeldingStandardANSI, JIS, DIN, EN, ISO, GB, SH AND HGMaterialCarbon, Stainless and AlloyCertificateAPI, ISO9001:2000, CCSPackingwooden cases or ...