描述:ASAHI硬度块90HRB HV300 HRC67 HRC64硬度标准块洛式B硬度块HRB90 HRB95 HRB100洛式C硬度块HRC20 HRC30 HRC40 HRC50 HRC60 HRC70 HRC80洛式A硬度块HRA85
ASAHI硬度块90HRB HV300 HRC67 HRC64硬度标准块
洛式B硬度块
HRB90 HRB95 HRB100
洛式C硬度块
HRC20 HRC30 HRC40 HRC50 HRC60 HRC70 HRC80
洛式A硬度块
HRA85
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