Home / Standards / GB/T 712-2022 GB/T 712-2022 Active Structural steel for ship and ocean engineering 船舶及海洋工程用结构钢 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2022-10-14 Implementation 2023-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A