俺本來是幹脆地買一個家用電焊機了。但是先買了一本焊工技術手冊，一看書俺被嚇住了，電焊有那麽複雜嗎？

來源: 剛來剛來於 2025-07-14 04:43:41 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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