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  2. List of companies of Qatar - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_of_Qatar

    Ras Laffan Industrial City: 2003 Gas to liquids company P A Qatar Airways: Consumer services Airlines Doha: 1993 State-owned airline S A Qatar Amiri Flight: Consumer services Airlines Doha: 1977 State-owned VIP airline S A Qatar Development Bank: Financials Banks Doha: 1997 State-owned development bank S A Qatar Exchange: Financials Investment ...

  3. Vacuum sewer - Wikipedia

    en.wikipedia.org/wiki/Vacuum_sewer

    Vacuum technology is based on differential air pressure. Rotary vane vacuum pumps generate an operation pressure of -0.4 to -0.6 bar at the vacuum station, which is also the only element of the vacuum sewerage system that must be supplied with electricity. Interface valves are installed inside the collection chambers. They work pneumatically.

  4. List of companies of the United Arab Emirates - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_of_the...

    Location of the United Arab Emirates. The United Arab Emirates is a country at the southeast end of the Arabian Peninsula on the Persian Gulf.. The economy is the second largest in the Arab world (after Saudi Arabia), with a gross domestic product (GDP) of US$570 billion (DH 2.1 trillion) in 2014.

  5. Industries Qatar - Wikipedia

    en.wikipedia.org/wiki/Industries_Qatar

    QAFCO was established in 1969 as a joint venture between the government of Qatar, Norsk Hydro, Davy Power and Hambros Bank to produce ammonia and urea in Qatar. [5] QAPCO and QAFAC were founded in 1974 and 1991 respectively. [6] [7] By 2003, these three companies were held by Qatar Petroleum (QP) while Qatar Steel remained directly owned by the ...

  6. Mesaieed Industrial Area - Wikipedia

    en.wikipedia.org/wiki/Mesaieed_Industrial_Area

    Mesaieed Industrial Area (Arabic: مسيعيد المنطقة الصناعية, romanized: Minṭaqat Musaī'īd aṣ-Ṣinā'iyah; also known as Umm Sa'id Industrial Area) is an industrial area in Al Wakrah Municipality in Qatar. It lies approximately 40 kilometres (25 mi) south of the capital Doha. [1]

  7. Edwards Vacuum - Wikipedia

    en.wikipedia.org/wiki/Edwards_Vacuum

    After the war, some of the inventions found new applications. The first transistor radio was released in 1954, and its manufacturing process made use of vacuum pumps. [43] The first integrated circuit or “chip” came to the market at the end of the 1950s, and vacuum pumps again played an important role in their production. These early ...

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