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  2. Aluminum building wiring - Wikipedia

    en.wikipedia.org/wiki/Aluminum_building_wiring

    Aluminum building wiring is a type of electrical wiring for residential construction or houses that uses aluminum electrical conductors. Aluminum provides a better conductivity-to-weight ratio than copper, and therefore is also used for wiring power grids, including overhead power transmission lines and local power distribution lines, as well ...

  3. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    The following is a partial list specific to welding: Standard Number. Description. AS/NZS 1554.1. Structural steel welding - Welding of steel structures. AS/NZS 1554.2. Structural steel welding - Stud welding (steel studs to steel) AS/NZS 1554.3. Structural steel welding - Welding of reinforcing steel.

  4. Copper-clad aluminium wire - Wikipedia

    en.wikipedia.org/wiki/Copper-clad_aluminium_wire

    The better conductor on the outer path causes the wire's resistance at high frequencies, where the skin effect is greater, to approach that of a pure copper wire. This improved conductivity over bare aluminum makes the copper-clad aluminium wire a good fit for radio frequency use.

  5. List of computer technology code names - Wikipedia

    en.wikipedia.org/wiki/List_of_computer...

    Following is a list of code namesthat have been used to identify computer hardware and software products while in development. In some cases, the code name became the completed product's name, but most of these code names are no longer used once the associated products are released.

  6. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Country calling codes, country dial-in codes, international subscriber dialing ( ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  7. Comparison of the AK-47 and M16 - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_the_AK-47...

    M16 aluminum 30-round magazine 0.490 kg (1.08 lb) ... and can be used as a multi-purpose knife and wire-cutter when ... The gas expands within a donut-shaped gas ...

  8. Unified numbering system - Wikipedia

    en.wikipedia.org/wiki/Unified_numbering_system

    The Unified Numbering System for Metals and Alloys ( UNS) is an alloy designation system widely accepted in North America. Each UNS number relates to a specific metal or alloy and defines its specific chemical composition, or in some cases a specific mechanical or physical property.

  9. Aluminium–lithium alloys - Wikipedia

    en.wikipedia.org/wiki/Aluminium–lithium_alloys

    Aluminium–lithium alloys. Aluminium–lithium alloys (Al–Li alloys) are a set of alloys of aluminium and lithium, often also including copper and zirconium. Since lithium is the least dense elemental metal, these alloys are significantly less dense than aluminium. Commercial Al–Li alloys contain up to 2.45% lithium by mass.