Tin cans go to war. The loyal citizen prepares his tin cans, and sets them out for collection. About 150,000 tin cans fill a freight car. They are off to the detinning plant. In this huge "basket" the tin cans are "cooked" until their tin coating dissolves. ... Each of these "pigs" contains 100 pounds of pure tin, salvaged from about 40,000 tin cans. ... Only about 1% of a tin can is tin; 99% is steel. After the tin is removed the cans are squeezed into heavy bales, and journey on
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