一部分。估計更多的是生產中產生的邊角廢料，原料利用率的高低看工藝水平。

來源: dakinglaile 於 2025-10-14 09:51:57 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (994 bytes)
回答: 再生鋼就是廢汽車回爐吧？ 由 天青水藍 於 2025-10-14 09:30:31

Recycled steel in the USA comes from three main sources: home scrap (waste from within steel mills), prompt (industrial) scrap (excess material from manufacturing, like cars and appliances), and obsolete scrap (end-of-life products and structures like old cars, buildings, and appliances).

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