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  2. Hörmann - Wikipedia

    en.wikipedia.org/wiki/Hörmann

    Hörmann is a German manufacturer of doors, garages, door frames, and gates for commercial and private real estate. [1] Operating globally, the family-owned business is Germany's largest door producer and the fourth biggest door manufacturer in the world.

  3. Door security - Wikipedia

    en.wikipedia.org/wiki/Door_security

    A metal doorframe with a strike plate built in: in other doors this would be a metal strikeplate in a wooden doorframe. The term door security or door security gate may refer to any of a range of measures used to strengthen doors against door breaching, ram-raiding and lock picking, and prevent crimes such as burglary and home invasions. Door ...

  4. American Metal Company - Wikipedia

    en.wikipedia.org/wiki/American_Metal_Company

    The origin of the American Metal Company (AMCO) begins with Metallgesellschaft AG of Germany, one of whose founders, Wilhelm Ralph Merton, tasked one of his cousins, Berthold Hochschild, to supervise its metal-trading business in the United States. [1] Hochschild moved to the U.S. in 1884, and the firm was incorporated in New York in 1887. [1]

  5. Door - Wikipedia

    en.wikipedia.org/wiki/Door

    Steel doors are another major type of residential front doors; most of them come with a polyurethane or other type of foam insulation core – a critical factor in a building's overall comfort and efficiency. Steel doors mostly in default comes along with frame and lock system, which is a high cost efficiency factor compared to wooden doors.

  6. Andersen Corporation - Wikipedia

    en.wikipedia.org/wiki/Andersen_Corporation

    Andersen ranked #146 on Forbes List of America's Largest Private Companies, with $3 billion in annual sales for fiscal year ending December 31, 2021, [1] [3] and #185 on Forbes list of America's best large employers in 2022. [4] Andersen Corporation and its affiliates make up the largest window and door manufacturer in North America. [5]

  7. Hollow structural section - Wikipedia

    en.wikipedia.org/wiki/Hollow_structural_section

    A hollow structural section (HSS) is a type of metal profile with a hollow cross section. The term is used predominantly in the United States, or other countries which follow US construction or engineering terminology. HSS members can be circular, square, or rectangular sections, although other shapes such as elliptical are also available.

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