Home / Standards / GB/T 38347-2019 GB/T 38347-2019 Active Hot-rolled wire rod of ultra-low carbon steel with high boron 超低碳高硼钢热轧盘条 Standard Type GBT ICS 77.140.60 CCS H49 Status 现行 Issue Date 2019-12-10 Implementation 2020-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A