Q. Which of the following method cannot be used for thermoplastic materials? (Solved)
1. Extrusion
2. Blow moulding
3. Injection moulding
4. All of the above
5. None of the above
- b. Blow moulding
1. Extrusion
2. Blow moulding
3. Injection moulding
4. All of the above
5. None of the above