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  2. Armstrong Tools - Wikipedia

    en.wikipedia.org/wiki/Armstrong_Tools

    Armstrong Tools was an American industrial hand tool manufacturer. [1] In its final years, it existed as a brand of Apex Tool Group , LLC and manufactured the majority of its tools in the United States, focusing mostly on aerospace, government, and military users.

  3. Circulator pump - Wikipedia

    en.wikipedia.org/wiki/Circulator_pump

    This avoids one of the principal challenges faced by the larger, two-part pumps: maintaining a water-tight seal at the point where the pump drive shaft enters the pump body. Small- to medium-sized circulator pumps are usually supported entirely by the pipe flanges that join them to the rest of the hydronic plumbing. Large pumps are usually pad ...

  4. Armstrong - Wikipedia

    en.wikipedia.org/wiki/Armstrong

    Armstrong Group of Companies, a conglomerate begun in Armstrong County, Pennsylvania; Armstrong Telephone Company, a telecommunications provider serving as a local exchange carrier in rural market; Armstrong Tools, an industrial hand tool manufacturer; Armstrong Whitworth, the British engineering conglomerate which became Vickers-Armstrong

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. Armstrong World Industries - Wikipedia

    en.wikipedia.org/wiki/Armstrong_World_Industries

    In 2011, Armstrong's net sales were $2.86 billion, with operating income of $239.2 million. [17] Armstrong Cabinets was sold by Armstrong World Industries to American Industrial Partners on October 31, 2012. Armstrong spun off its flooring business into a new company, Armstrong Flooring (NYSE: AFI) on April 1, 2016.

  7. Liquid-ring pump - Wikipedia

    en.wikipedia.org/wiki/Liquid-ring_pump

    Single-stage vacuum pumps typically produce vacuum to 35 torr (mm Hg) or 47 millibars (4.7 kPa), and two-stage pumps can produce vacuum to 25 torr, assuming air is being pumped and the ring-liquid is water at 15 °C (59 °F) or less. Dry air and 15 °C sealant-water temperature is the standard performance basis, which most manufacturers use for ...

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