coated abrasive

  • 51Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) …

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  • 52Resistor — A typical axial lead resistor Type Passive Working principle Electrical resistance Invented Ge …

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  • 53Match — For other uses, see Match (disambiguation). An igniting match …

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  • 54Electrorheological fluid — Electrorheological (ER) fluids are suspensions of extremely fine non conducting particles (up to 50 micrometres diameter) in an electrically insulating fluid. The apparent viscosity of these fluids changes reversibly by an order of up to 100,000… …

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  • 55KWH Group — Infobox Company company name = KWH Group company company type = Private foundation = 1929 location = Vaasa, Finland key people = Henrik Höglund, Chairman Peter Höglund, President Ralf Karlström (KWH Mirka) Hannu Uusi Pohjola (KWH Logistics) Tom J …

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  • 56Compact Disc — Trademark. a brand of compact disk. * * * ▪ recording Introduction (CD)        a molded plastic disc containing digital data that is scanned by a laser beam for the reproduction of recorded sound (musical sound) and other information. Since its… …

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  • 57Glass — This article is about the material. For other uses, see Glass (disambiguation). Moldavite, a natural glass formed by meteorite impact, from Besednice, Bohemia …

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  • 58Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… …

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  • 59Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center …

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  • 60Tap and die — Not to be confused with Tool and die. Taps and dies are cutting tools used to create screw threads, which is called threading. A tap is used to cut the female portion of the mating pair (e.g., a nut). A die is used to cut the male portion of the… …

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