Home / Standards / GB/T 346 GB/T 346 Active Galvanized low carbon steel wire for electric communications lines 通讯线用镀锌低碳钢丝 Standard Type GBT ICS 77.140.60 CCS H49 Status 现行 Issue Date 1984-09-28 Implementation 1985-08-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会