Q. Bitumen felt (Solved)
1. Is used as water proofing material
2. Is used as damp proofing material
3. Is made from bitumen and hessian fibres
4. All the above
- d. All the above
1. Is used as water proofing material
2. Is used as damp proofing material
3. Is made from bitumen and hessian fibres
4. All the above