美利体育登录入口官网:EN ISO 9692-1:2013 焊接和相关工艺.接头准备型式.第1部分:手工金属电弧焊,气体保护金属电弧焊和气焊,钢的钨极惰性气体保护电弧焊和镭射光焊接
Welding and allied processes - Types of joint preparation - Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels