Home / Standards / GB/T 26052-2022 GB/T 26052-2022 Active Tubular welding rods of tungsten carbide 硬质合金管状焊条 Standard Type GBT ICS 77.160 CCS H72 Status 现行 Issue Date 2022-07-11 Implementation 2023-02-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A