HRSS-150S ihuenyo mmetụ Rockwell & Elu Rockwell Hardness Tester

Nkọwa dị mkpirikpi:

1.Good ntụkwasị obi, ọrụ magburu onwe ya na ikiri dị mfe;

2.Rockwell & Elu Ugwu Rockwell

3. moto na-anya

4. Nwere ike jikọọ PC na mmepụta

5. Ntugharị dị iche iche akpịrịkpa siri ike;