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当要求把厚度为1毫米的铝板凸焊在厚度为6.35毫米的铝板上时,由于特殊的使用条件,要求焊接件保持良好的表面外观,这确实是一件比较困难的事情。起
When it is required to solder a 1 mm thick aluminum plate to an aluminum plate with a thickness of 6.35 mm, it is indeed a difficult task to require the welded part to maintain a good surface appearance due to the special use conditions. Start