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COMPOSITION OR RED BRASS Shall consist of red brass scrap, valves, machinery bearings andother machinery parts, including miscellaneous castings made of copper, tin, zinc, and/or lead. Should be free of semi-red brass castings (78% to 81% copper);railroad car boxes and other similarhigh-lead alloys; cocks and faucets; closed water meters; gates;potpieces; ingots and burned brass; aluminum, silicon, and man-ganese bronzes;iron and non-metallics. No piece to measure more than 12" over any one part or weigh over 100 lbs.
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