Home / Standards / GB/T 14957 GB/T 14957 Active Steel wires for melt welding 熔化焊用钢丝 Standard Type GBT ICS 77.140.60 CCS H49 Status 现行 Issue Date 1994-06-13 Implementation 1995-01-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会