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
硬度转换表HLD,HRC,HRB,HV,HB,HSD