尤其是輕工業產品，更需要得到顧客的滿意，所以被拉下一大截。至於重工業，如鋼鐵，煤炭等就不那麽講究了。

來源: chufang 於 2026-04-12 11:12:02 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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