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4. Allegheny Technologies
Leading manufacturer of specialty metals like stainless steel, nickel alloys, cobalt alloys, titanium alloys.
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8. Columbia Gas
Columbia Gas of Pennsylvania and Columbia Gas of Maryland, headquartered in Pittsburgh.
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10. Crucible Research
Conducts alloy development and provides specialty gas atomization powders.
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11. Edward C Smyers Co
Distributor of automatic temperature control systems, pumps, valves, relays, sensors and gas detection systems.
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12. Electric Research
Specializes in research, development and consulting on, and special product developments for, electric power related phenomena.
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13. HJ Heinz
Manufacturer and marketer of foods and condiments. Includes recipes, news.
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14. Hy-Tech Sales, Inc
Distributes electric heaters and controls, plus design and assembly services.
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15. Ironbuilt Steel Buildings
Manufactures and distributes steel buildings for industrial, commercial, equestrian, residential.
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17. Pitt Penn Oil Co
A full service blender and packager of automotive and household products.
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19. T F Campbell Company
Distributor of control systems, pressure switches, recording and indicating instruments.
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20. Thermal Industries
Manufacturer of quality vinyl decks, docks, vinyl windows, patio doors, deck railings and enclosures.
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