Quality :Grade A Certificate:ISO9001:2000 Material: carbon stee ,stainless steel ,forged carbon steel ,alloy Product DescriptionName CARBON STEEL SMLS PIPES Size 1 ... , JIS, DIN, EN, ISO, GB, SH AND HG Material Carbon, Stainless, Alloy Certificate API, ISO9001: 2000, CCS Packing wooden cases or customerized ...