• Elements
  • Designs
  • Design topics
  • Element topics
  • Boards
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Conservation. Scrap iron and steel. This gaunt row of discarded boilers represent a potential source of tons of steel for national defense production. House wreckers supply tons of cast iron and steel scrap that can be converted into steel to alleviate threatened shortages of this vital defense material (U.S. Route 1, Baltimore-Washington Highway,. Sourced from the Library of Congress.

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Conservation. Scrap iron and steel. This gaunt row of discarded boilers represent a potential source of tons of steel for national defense production. House wreckers supply tons of cast iron and steel scrap that can be converted into steel to alleviate threatened shortages of this vital defense material (U.S. Route 1, Baltimore-Washington Highway,. Sourced from the Library of Congress.

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