钨极氩弧焊电弧
tungsten inert gas welding arc
钨极氩弧焊工艺
argon tungsten arc process
氩弧焊连续焊接法
continuous argon welding method
351型交直流方波氩弧焊机
351 alternating and direct square-waves argon are
单式弧焊接机
single operator welding machine
单弧焊工艺
single arc welding technology
大型直缝埋弧焊钢管
large diameter longitudinal seam submerged arc welding(LSAW) pipe
CO2弧焊
CO 2 gas shielded arc welding