描述:HRC45 HRC50 HRC55 HRC60 HRC62 HRC64 HRC67 90HRB山本硬度标准块HRC20 HRC25 HRC30 HRC35 HRC40山本硬度标准块HRC45 HRC50 HRC55 HRC60 HRC62 HRC64 HRC67 HRB90硬度块
HRC45 HRC50 HRC55 HRC60 HRC62 HRC64 HRC67 90HRB山本硬度标准块
度标准块
HRC20 HRC25 HRC30 HRC35 HRC40山本硬度标准块HRC45 HRC50 HRC55 HRC60 HRC62 HRC64 HRC67 HRB90
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中级会员
第14年