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2. Bartlett-Hayward Company - Wikipedia

   en.wikipedia.org/wiki/Bartlett-Hayward_Company

   Bartlett-Hayward Company was an American metalworking company with large foundry, fabrication, and construction business lines, located in Baltimore, Maryland.Founded in the 1830s, [1] it was independent until 1925 and since 1927 was owned by Koppers, [2] of which it remained a division long afterward.

3. Forge welding - Wikipedia

   en.wikipedia.org/wiki/Forge_welding

   Copper and its alloys are usually better joined with cold welding, explosion welding, or other pressure-welding techniques. With iron or steel, the presence of even small amounts of copper severely reduces the alloy's ability to forge weld. [17] [18] Titanium alloys are commonly forge welded. Because of titanium's tendency to absorb oxygen when ...

4. Kitchen hood - Wikipedia

   en.wikipedia.org/wiki/Kitchen_hood

   A kitchen hood in a small apartment. A kitchen hood, exhaust hood, hood fan, extractor hood, or range hood is a device containing a mechanical fan that hangs above the stove or cooktop in the kitchen. It removes airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration. [1]

5. List of copper mines in the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_copper_mines_in...

   Gold-copper ore, concentrated and leached 16 (2018) [6] 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10–15 (2018) [9] 17 Miami: Gila County, Arizona: Freeport-McMoRan: Copper ore, leached 5 (2021) [2] 18 Carlota Gila County, Arizona: KGHM Polska Miedź: Porphyry copper open pit ...

6. Griswold Manufacturing - Wikipedia

   en.wikipedia.org/wiki/Griswold_Manufacturing

   Griswold Manufacturing (/ ˈ ɡ r ɪ z w ɔː l d,-w əl d /) [1] was an American manufacturer of cast-iron kitchen products founded in Erie, Pennsylvania, in business from 1865 through 1957.

7. Copper mining in Arizona - Wikipedia

   en.wikipedia.org/wiki/Copper_mining_in_Arizona

   In 2007, Arizona was the leading copper-producing state in the country, producing 750 thousand metric tons of copper, valued at $5.54 billion. Arizona's copper production was 60% of the total for the United States. Copper mining also produces gold and silver as byproducts. [2]