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Q. |
Plug rolling is used to |
A. | Reduce the wall thickness and increase the diameter of tubes already made |
B. | Remove out of roundness of pipes |
C. | Increase the wall thickness of pipes at ends |
D. | Reduce the diameter of pipe |
E. | Cut threads at the ends of pipes |
Answer» A. Reduce the wall thickness and increase the diameter of tubes already made |
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