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  2. Chemical-mechanical polishing - Wikipedia

    en.wikipedia.org/wiki/Chemical-mechanical_polishing

    The pad and wafer are pressed together by a dynamic polishing head and held in place by a plastic retaining ring. The dynamic polishing head is rotated with different axes of rotation (i.e., not concentric). This removes material and tends to even out any irregular topography, making the wafer flat or planar. This may be necessary to set up the ...

  3. Non-stick surface - Wikipedia

    en.wikipedia.org/wiki/Non-stick_surface

    [6] [7] A few years later, a French engineer had begun coating his fishing gear with Teflon to prevent tangles. His wife Colette suggested using the same method to coat her cooking pans. The idea was successful and a French patent was granted for the process in 1954. The Tefal company was formed in 1956 to manufacture non-stick pans. [5]

  4. Melamine foam - Wikipedia

    en.wikipedia.org/wiki/Melamine_foam

    A "Mr. Clean Magic Eraser" brand sponge, made from melamine foam. Melamine foam is a foam-like material consisting of a melamine-formaldehyde condensate. It is the active component of a number of abrasive cleaner sponges, notably the Magic Eraser. It is also used as thermal insulation and as a soundproofing material.

  5. Polishing - Wikipedia

    en.wikipedia.org/wiki/Polishing

    Polishing is the process of creating a smooth and shiny surface by rubbing it or by applying a chemical treatment, leaving a clean surface with a significant specular ...

  6. Cloud Gate - Wikipedia

    en.wikipedia.org/wiki/Cloud_Gate

    air-driven 10-pound (4.5 kg), 1-inch (25 mm) belt sander 80-grit, 120-grit, 240-grit and 400-grit Smoothed the weld contours 4 Refining double action sander: 400-grit, 600-grit and 800-grit Removed the fine scratches that were left from the sculpting stage 5 Polishing 10-inch (250 mm) electric buffing wheel 10 pounds (4.5 kg) of rouge

  7. Flooring - Wikipedia

    en.wikipedia.org/wiki/Flooring

    The level of comfort is determined by the type of material used, which can include memory foam and rubber regrind. [citation needed] Carpet underlay is rated by density in pounds. For example, you could purchase a carpet pad with an 8-pound density rating, which would be softer than a carpet pad with a 10-pound density rating.

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