How was america able to produce war supplies

Steel and Iron, these are essential for the war industry and thus enabled America to produce war supplies.

In WW2, massive American factories started to mass produce war supplies.

Explanation:

Companies such as Ford, Cadillac, and Boeing created war supplies. Large companies created Jeeps, ammunition, planes, guns, and bombs. The U. S created over 100,000 planes, over 1,000,000,000 bullets, and 86,000 tanks during WW2.