Plastic tubes & pipes are generally made by ______________ moulding?
Correct answer: A. Extrusion
- A. Extrusion
- B. Transfer
- C. Injection
- D. Compression
Explanation
Extrusion continuously forces softened plastic through a die, producing constant-cross-section products such as tubes and pipes. Injection moulding is better suited to discrete shaped articles rather than continuous lengths.
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