硬度转换表HLD,HRC,HRB,HV,HB,HSD

国家标准硬度转换表HLDHRCHRBHVHB[1]HB[2]HSDHLDHRCHRBHVHB[1]HB[2]HSD300  83   59633.9 32231431546.3302  84   59

腾讯文库硬度转换表HLD,HRC,HRB,HV,HB,HSD硬度转换表HLD,HRC,HRB,HV,HB,HSD