GB/T 41861-2022气焊设备焊接、切割及相关工艺设备用软管组件国家标准
英文:Gas welding equipment—Hose assemblies for equipment for welding, cutting and allied processes GB/T 41861-2022介绍: 国家标准...
英文:Gas welding equipment—Hose assemblies for equipment for welding, cutting and allied processes GB/T 41861-2022介绍: 国家标准...