GB/T 32790-2016铝及铝合金挤压焊缝焊合性能检验方法国家标准
英文:Methods for evaluating the weld quality of seam welds in aluminium and aluminium alloy extrusion GB/T 32790-2016介绍: 国...
英文:Methods for evaluating the weld quality of seam welds in aluminium and aluminium alloy extrusion GB/T 32790-2016介绍: 国...