Q. CO2 sand is used (Solved)
1. for low temperature alloys
2. for non-ferrous castings
3. Parting off
4. for producing hard surface around the mould
5. for mass production of castings
- d. for producing hard surface around the mould
1. for low temperature alloys
2. for non-ferrous castings
3. Parting off
4. for producing hard surface around the mould
5. for mass production of castings