Herewith we have shared very important mechanical engineering study materials. This is very useful for all kind of competitive exams like GATE, IES, SSC, PSUs and State Level Exams.
Topic: Hardness
Download Link: https://drive.google.com/uc?id=1fGxX7r-J9fjmS6aYm-MuCBzimhKo7dYi&export=download