R(D)-45A1电动表面洛氏硬度计
Model R(D)-45A1 Surferficial Rockwell Hardness Tester

　　R(D)-45A1型电动表面洛氏硬度计具有性能稳定，结构牢靠、安全，操作方便等特点。采用自动加卸试验力方法，保荷时间稳定，消除了人为操作误差，示值精度高。
该硬度计适用硬质合金、渗碳钢、淬火钢、硬铸铁及软钢、铝合金、铜合金和可锻铸铁的硬度的测定。　

　　This tester is a popular type Rockwell hardness testing machine, the construction is firm and reliable and safe, operating convenience etc. characteristics.The adoption adds to unload automatically to experiment the dint method, protecting time of stable, dissolves artificial operation error margin, show the worth accuracy high.
　　 That degree of hardness accounts to be applicable to the black metals and have the Rockwell surname degree of hardness measurement of the color metals.It is extensive to be applicable to factory car with calculate the section.