... Standard:DIN,JIS,ASTM,ASME,API Certification:ISO api 5l x 52 carbon steel pipes teel pipe Our company is one professional ... manufacturer specializing in steel pipe and pipe fittings. TypeAPI 30'' hot expand carbon seamless steel pipeSize3/8"-32"Wall ... thicknessSch10-SchXXSStandardANSI,ASME GB, SH,HG, MSS,JIS,DIN, APIMaterialASTM A106 GRB/ A53 GRB/ API 5L ...