... steel pipe Size:3/8"-32"*SCH10-SCHXXS Standard:DIN,JIS,ASTM,ASME,API Certification:ISO API hs code carbon steel pipe ... fittings. TypeAPI 30'' hot expand carbon seamless steel pipeSize3/8"-32"Wall thicknessSch10-SchXXSStandardANSI,ASME GB, SH,HG, MSS,JIS,DIN ... production process are made under the ISO9001:2000 strictly. API hs code carbon steel pipe