Oxygen cylinders used for autogenous (cutting/welding) purposes are (A) Seamless & made of steel (B) Heat treated before use (C) Made by sand casting (D) Welded steel cylinders

Oxygen cylinders used for autogenous (cutting/welding) purposes are
(A) Seamless & made of steel
(B) Heat treated before use
(C) Made by sand casting
(D) Welded steel cylinders
by

1 Answer

Answer :

Option A
by

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