GB/T 39081-2020电阻点焊及凸焊接头的十字拉伸试验方法标准
英文:Test method of cross tension test for resistance spot and embossed projection welds GB/T 39081-2020介绍: 国家标准《电阻点焊及凸焊接头...
英文:Test method of cross tension test for resistance spot and embossed projection welds GB/T 39081-2020介绍: 国家标准《电阻点焊及凸焊接头...