Q. Mould washes are used to produce (Solved)
1. castings with different hardnesses at different locations
2. smooth surface on castings
3. castings with symmetrical sections
4. None of the above
5. Parting off
- b. smooth surface on castings
1. castings with different hardnesses at different locations
2. smooth surface on castings
3. castings with symmetrical sections
4. None of the above
5. Parting off