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  2. Gas cylinder - Wikipedia

    en.wikipedia.org/wiki/Gas_cylinder

    The term cylinder in this context is sometimes confused with tank, the latter being an open-top or vented container that stores liquids under gravity, though the term scuba tank is commonly used to refer to a compressed gas cylinder used for breathing gas supply to an underwater breathing apparatus.

  3. Satchel charge - Wikipedia

    en.wikipedia.org/wiki/Satchel_Charge

    The later U.S. M183 Demolition Charge Assembly contained 20 lb (9.1 kg) of C-4 in each satchel, and could be used with a timed fuse. In the Second Battle of Fallujah in Iraq , U.S. M2 20 lb assault demolitions were used to collapse houses being used as fighting positions by insurgents.

  4. Shielding gas - Wikipedia

    en.wikipedia.org/wiki/Shielding_gas

    C-20 (80% argon/20% CO 2) is used for short-circuiting and spray transfer of carbon steel. C-15 (85% argon/15% CO 2) is common in production environment for carbon and low alloy steels. Has lower spatter and good weld penetration, suitable for thicker plates and steel significantly covered with mill scale. Suitable for short circuit, globular ...

  5. Ordnance QF 20-pounder - Wikipedia

    en.wikipedia.org/wiki/Ordnance_QF_20-pounder

    The Ordnance QF 20 pounder (known as 20 pounder, 20 pdr or simply 20-pr) was a British 84 mm (3.307 inch) tank gun. [ 1 ] [ i ] It was introduced in 1948 and used in the Centurion main battle tank, Charioteer medium tank, and Caernarvon Mark II heavy tank.

  6. Propane - Wikipedia

    en.wikipedia.org/wiki/Propane

    A 20 lb (9.1 kg) steel propane cylinder.This cylinder is fitted with an overfill prevention device (OPD) valve, as evidenced by the trilobular handwheel. Propane (/ ˈ p r oʊ p eɪ n /) is a three-carbon alkane with the molecular formula C 3 H 8.

  7. Matheson (compressed gas & equipment) - Wikipedia

    en.wikipedia.org/wiki/Matheson_(compressed_gas...

    Matheson Tri-Gas, Inc. produces industrial, medical, and specialty gases, and associated gas handling equipment, in North America.MATHESON offers semiconductor, medical, welding, atmospheric gases, rare gases delivered via pipelines, onsite generators, bulk tanks, and in gas cylinders to customers using gases in their labs, semiconductor fabs, hospitals, chemical plants, manufacturing and many ...