标 准 编 号： DIN EN 22553-1997简体中文标题：焊接接缝和软钎焊接缝.图纸符号标注方法繁体中文标题：焊接接缝和软钎焊接缝.图纸符号标注方法English Name：Welded, brazed and soldered joints - Symbolic representation on drawings (ISO 2553:1992);...