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发表于 2013-8-17 12:18:00
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现在最新的是2012……
Designation: E140 − 12b
Standard Hardness Conversion Tables for
Metals Relationship Among Brinell Hardness, Vickers
Hardness, Rockwell Hardness, Superficial Hardness, Knoop
Hardness, Scleroscope Hardness, and Leeb Hardness1 |
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