金属焊接及钎焊方法在图样上的表示代号
Welding,brazing,braze welding and soldering of metals--List of processes for symbolic representation on drawings
标准状态
发布于:1985-05-11
实施于:1986-04-01
已废止
Welding,brazing,braze welding and soldering of metals--List of processes for symbolic representation on drawings