Home / Standards / GB/T 15620 GB/T 15620 Active Solid wire electrodes ,solid strip electrodes, solid wires and solid rods for fusion welding of nickel and nickel alloys 镍及镍合金实心焊丝和焊带 Standard Type GBT ICS 25.160.20 CCS J33 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委