manual metal-arc meaning in English

手工金属电弧

Welding and allied processes - recommendations for joint preparation - manual metal - arc welding , gas - shielded metal - arc welding , gas welding , tig welding and beam welding of steels
焊接和相关工艺.接缝制备的建议.钢的手动金属电弧焊气体保护金属电弧焊气焊tig焊接和束焊
Welding and allied processes - recommendations for joint preparation - part 1 : manual metal - arc welding , gas - shielded metal - arc welding , gas welding , tig welding and beam welding of steels
焊接和相关工艺.接头预处理的推荐方法.第1部分:钢的手工金属电弧焊接气体保护金属弧焊气焊tig焊接和束焊