Electro-spark Overlaying Welding
Laser Overlaying Welding
Overlaying Welding Layer
overlaying welding of copper alloy
Valve Overlaying Welding
design of welding procedure
double-electrode gas metal arc welding procedure
Girth Welding∥Welding Auxiliary Device
qualification of welding procedure
repairing welding procedure
selection of welding procedure
tabular welding procedure
tungsten inert-gas welding welding
welding procedure
焊接工艺
焊接程序
焊接技术
工艺设计
焊接顺序
焊接
焊缝工艺规范
焊接规程
熔接步骤
组焊工艺
welding procedure and material