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![Brinell scale - Wikipedia, the free encyclopedia]()
en.wikipedia.orgThe Brinell scale characterizes the indentation hardness of materials through the scale of ... Thus a typical steel hardness could be written: 250 HB 30D2. It could ...瀏覽：453
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日期：2025-12-17
The Brinell scale characterizes the indentation hardness of materials through the
scale of ... Thus a typical steel hardness could be written: 250 HB 30D2. It could ......
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