Home / Standards / GB/T 44509-2024 GB/T 44509-2024 Active Welding procedure qualification test for spot,seam and projection welding 点焊、缝焊和凸焊的焊接工艺评定试验 Standard Type GBT ICS 25.160.10 CCS J 33 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 国家标准委 Drafting Unit N/A