The HRMS 45 model is manufactured by United Test and is a digital superficial rockwell hardness tester that is attached with a large dis...
Class 12.9 bolt has the highest percentage of carbon among all bolt materials and has had heating and tempering process on its rod prior ...
SKF roller bearings are produced in different shapes of rollers. they bear 60 Rockwell hardness and are suitable for high rotational spee...