Question

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 point and further reducing it by rolling gas drawing.

d.

both (b) and (c).

Answer: (d).both (b) and (c).

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Q. Seamless pipe is made

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