Home / Standards / GB/T 18669 GB/T 18669 Active Steel for ship anchor chain and offshore mooring chain cables 船用锚链和系泊链钢 Standard Type GBT ICS 77.140.70 CCS H 44 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会