Home / Standards / GB/T 4357-2022 GB/T 4357-2022 Active Cold-drawn unalloyed steel wire for springs 冷拉碳素弹簧钢丝 Standard Type GBT ICS 77.140.65 CCS H49 Status 现行 Issue Date 2022-04-15 Implementation 2022-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A