https://www.hstmetall.com/PRODUCT/Rockwell_Hardness_Tester/99.html
THR-45XC Automatic Rockwell hardness (convex nasal)_HST testing machine group
1.Features 1. Specially designed head horizontally protruding ring can be measured, such as general hardness tubular parts can not be measured, the minimum...
testing machinethrautomaticrockwellhardness