Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_____________________?

Circular cross section machine parts which are symmetrical about the a

1.	Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_____________________?
A.	Piercing
B.	Spinning
C.	Drawing
D.	Extrusion
Answer» C. Drawing

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Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_____________________?

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