金屬硬度(du)(du)(du)對照(zhao)表(biao)（布氏(shi)硬度(du)(du)(du)HB、洛氏(shi)硬度(du)(du)(du)HRC、肖氏(shi)硬度(du)(du)(du)HS、維氏(shi)硬度(du)(du)(du)HV）互換對照(zhao)表(biao)


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