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
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