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  2. Dust-Off - Wikipedia

    en.wikipedia.org/wiki/Dust-Off

    Dust-Off. Dust-Off is a brand of dust cleaner (refrigerant-based propellant cleaner, which is not compressed air and incorrectly called "canned air"). The product usually contains difluoroethane; although some use tetrafluoroethane and tetrafluoropropene as a propellant. It is used to blow particles and dust from computer, keyboards ...

  3. Concrete grinder - Wikipedia

    en.wikipedia.org/wiki/Concrete_grinder

    A concrete grinder is an abrasive machine for grinding and polishing concrete and natural stone. Concrete grinders can come in many configurations, the most common being a hand-held general purpose angle grinder, but it may be a specialized tool for countertops or floors.

  4. Gas duster - Wikipedia

    en.wikipedia.org/wiki/Gas_duster

    A dust spray can often be used as a freeze spray. Many gas dusters contain HFC-134a (tetrafluoroethane), which is widely used as a propellant and refrigerant. HFC-134a sold for those purposes is often sold at a higher price, which has led to the practice of using gas dusters as a less expensive source of HFCs for those purposes.

  5. Powder-actuated tool - Wikipedia

    en.wikipedia.org/wiki/Powder-actuated_tool

    A tool is considered low velocity if the average test velocity of the fastener is not in excess of 300 ft/s (91 m/s) with no single test having a velocity of over 108 m/s (350 ft/s). [1] A high velocity tool propels or discharges a stud, pin, or fastener in excess of 300 ft/s (91 m/s).

  6. Pavers (flooring) - Wikipedia

    en.wikipedia.org/wiki/Pavers_(flooring)

    Pavers manufactured from concrete go well with flag, brick and concrete walkways or patios. Concrete pavers may be used where winter temperatures dip below freezing. They are available in hole, x-shape, y-shape, pentagon, polygon and fan styles. An interlocking concrete paver, also known as a segmental paver, is a type of paver.

  7. ‘Chroming’ is killing some kids. Experts explain this trend

    www.aol.com/chroming-experts-explain-dangerous...

    “People have been inhaling fumes for centuries,” Choi said via email. “According to the 2020 National Survey on Drug Use and Health, inhalant abuse peaked in the 1990s and was downtrending ...

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