GB/T 27552-2021金属材料焊缝破坏性试验焊接接头显微硬度试验标准
英文:Destructive tests on welds in metallic materials—Microhardness testing of welded joints GB/T 27552-2021介绍: 国家标准《金属材料焊...
英文:Destructive tests on welds in metallic materials—Microhardness testing of welded joints GB/T 27552-2021介绍: 国家标准《金属材料焊...