A sharp pointed wire used in foundry for punching holes through the rammed sand

[Solved] A vent wire is

Q.	A vent wire is
A.	is used in cold heading
B.	A kind of wire used in hot forging
C.	A sharp pointed wire used in foundry for punching holes through the rammed sand
D.	A wire for providing airflow
E.	None of the above
Answer» C. A sharp pointed wire used in foundry for punching holes through the rammed sand

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