While rolling a strip the peripheral velocity of the roll is ..... A .... than the entry velocity of the strip and is ...... B .... the exit velocity of the strip
A. greater / less / equal to
B. greater than / less than / equal to

Semi brittle materials can be extruded by

Collapsible tubes are made by

At the last hammer stroke the excess material from the finishing cavity of a forging die is pushed into .............