Relevant Competitive Tests:
Seamless pipe is made________________?
A. From rolled strips formed into cylinders and seam-welded
B. By extrusion & casting into static and centrifugal molds
C. By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer
D. Both B. and C.Correct Answer
Correct Option: D. Both B. and C.
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