Q. In lost wax casting for non-ferrous materials, the material of the mould is (Solved)
1. Sodium silicate
2. Silica
3. Plaster of Paris
4. Ethyl silicate
5. Parting off
- c. Plaster of Paris
1. Sodium silicate
2. Silica
3. Plaster of Paris
4. Ethyl silicate
5. Parting off