GB/T 25774.2-2023焊接材料的检验第2部分:钢的单面单道焊和双面单道焊焊接接头力学性能试样的制备国家标准
英文:Test methods for welding consumables—Part 2: Preparation of butt weld single-run and two-run technique test pieces an...
英文:Test methods for welding consumables—Part 2: Preparation of butt weld single-run and two-run technique test pieces an...