| North American Steel Ltd (Homewood, IL)
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| North States Steel Corp (Bensenville, IL)
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| Northwest Steel Corp (Franklin Park, IL)
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| Nu Steel Co (Chicago, IL)
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| Nucor Steel Kankakee Inc (Bourbonnais, IL)
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| Pella Window Store (Tinley Park, IL)
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| Performance Metal Fabricators (Hanover Park, IL)
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| Phalen Steel Construction Co (Mendota, IL)
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| Prometco Processing (Naperville, IL)
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| Ptc Alliance (Blue Island, IL)
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| Q C Metal Pickling Co (East Moline, IL)
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| Rebars & Steel (McHenry, IL)
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| Redmore Products Co (Hampshire, IL)
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| Riverdale Steel Processing Inc (Riverdale, IL)
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| Robert James Sales Inc (Chicago Ridge, IL)
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| Robinson Steel Co Inc (Granite City, IL)
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| Rogalla Systems Inc (Barrington, IL)
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| Rolled Metal Products (Alsip, IL)
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| Royal Steel Ball Products Inc (Sterling, IL)
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| Sawing & Shearing Svc (Blue Island, IL)
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| Scott Plating Inc (Skokie, IL)
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| Set Steel (Chicago Heights, IL)
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| Siegal Steel Co (Chicago, IL)
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| Skyline Steel Mid West Div (Tinley Park, IL)
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| Specialty Metals (Litchfield, IL)
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