| • rock well hardness test • rockwell hardness test | |
| कठोरता: acrimony rigor acerbity unkindness toughness | |
| निकष: criterion touchstone criteria gold tester | |
रॉकवेल कठोरता निकष in English
[ rokavel kathorata nikas ] sound:
| • rock well hardness test • rockwell hardness test | |
| कठोरता: acrimony rigor acerbity unkindness toughness | |
| निकष: criterion touchstone criteria gold tester | |
