Home / Standards / GB/T 18704-2008 GB/T 18704-2008 Active Stainless steel clad pipes for structural purposes 结构用不锈钢复合管 Standard Type GBT ICS 77.140.75 CCS H48 Status 现行 Issue Date 2008-05-13 Implementation 2008-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会