金(jin)屬(shu)硬度(du)(du)對(dui)(dui)照(zhao)表（布氏(shi)硬度(du)(du)HB、洛氏(shi)硬度(du)(du)HRC、肖氏(shi)硬度(du)(du)HS、維氏(shi)硬度(du)(du)HV）互換對(dui)(dui)照(zhao)表


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