Home / Standards / GB/T 17493-2018 GB/T 17493-2018 Active Tubular cored electrodes for creep-resisting steels 热强钢药芯焊丝 Standard Type GBT ICS 25.160.20 CCS J33 Status 现行 Issue Date 2018-05-14 Implementation 2018-12-01 Responsible Dept 国家标准委 Drafting Unit N/A