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2. Aluminium bronze - Wikipedia

   en.wikipedia.org/wiki/Aluminium_bronze

   Nordic Gold, composed of 89% copper, 5% aluminium, 5% zinc, and 1% tin, is a more recently developed aluminium-bronze alloy for coinage. It was first used for the Swedish 10-kronor coin in 1991, and became widespread after the introduction of Nordic gold 10, 20 and 50-cent Euro coins in 2002.

3. List of RAL colours - Wikipedia

   en.wikipedia.org/wiki/List_of_RAL_colours

   White aluminium: Originally a corrosion protection specification; not recommended for decorative use [10] RAL 9007: Grey aluminium: Originally a corrosion protection specification; not recommended for decorative use [10] RAL 9010: Pure white: Door white RAL 9011: Graphite black: RAL 9012: Clean room white [11] Introduced in 2020 [5] RAL 9016 ...

4. Anodizing - Wikipedia

   en.wikipedia.org/wiki/Anodizing

   These carabiners have an anodized aluminium surface that has been dyed; they are made in many colors. Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called anodizing because the part to be treated forms the anode electrode of an ...

5. Bronze - Wikipedia

   en.wikipedia.org/wiki/Bronze

   Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals (such as phosphorus) or metalloids (such as arsenic or silicon).

6. Window screen - Wikipedia

   en.wikipedia.org/wiki/Window_screen

   When first installed, it has a bright gold color; this weathers to an unobtrusive dark charcoal within a year or less. Weathered bronze darkens the external appearance of windows to approximately the same degree as charcoal or black aluminum. Bronze is somewhat more resistant to denting than aluminum.

7. General Bronze Corporation - Wikipedia

   en.wikipedia.org/wiki/General_Bronze_Corporation

   The vast aluminum windows manufactured by General Bronze on the east and west building walls are cantilevered beyond the structural steel columns and are supported within the light aluminum framework on double-hung aluminum sashes and fitted with blue-green heat-absorbing plate glass. [9] The iconic building sits as a testament to world unity. [28]