一部分。估计更多的是生产中产生的边角废料，原料利用率的高低看工艺水平。

来源: dakinglaile 于 2025-10-14 09:51:57 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (994 bytes)
回答: 再生钢就是废汽车回炉吧？ 由 天青水蓝 于 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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