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2. Vinyl composition tile - Wikipedia

   en.wikipedia.org/wiki/Vinyl_composition_tile

   Vinyl floor tiling. Vinyl composition tile (VCT) is a finished flooring material used primarily in commercial and institutional applications. Modern vinyl floor tiles and sheet flooring and versions of those products sold since the early 1980s are composed of colored polyvinyl chloride (PVC) chips formed into solid sheets of varying thicknesses (1 ⁄ 8 in or 3.2 mm is most common) by heat and ...

3. Cost estimate - Wikipedia

   en.wikipedia.org/wiki/Cost_estimate

   The U.S. Government Accountability Office (GAO) defines a cost estimate as "the summation of individual cost elements, using established methods and valid data, to estimate the future costs of a program, based on what is known today". The GAO reports that "realistic cost estimating was imperative when making wise decisions in acquiring new ...

4. Flooring - Wikipedia

   en.wikipedia.org/wiki/Flooring

   The common installation method for laminate flooring is a floating installation, which means the floor connects to each other to form interlocked flooring system and is not attached to the sub-floor which means it is free to "float" over a variety of sub-floors. This includes existing flooring like ceramic tile and hardwood floors.

5. Vinyl flooring - Wikipedia

   en.wikipedia.org/wiki/Vinyl_flooring

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

6. Sheet metal - Wikipedia

   en.wikipedia.org/wiki/Sheet_metal

   The curling process is used to form an edge on a ring. This process is used to remove sharp edges. It also increases the moment of inertia near the curled end. The flare/burr should be turned away from the die. It is used to curl a material of specific thickness. Tool steel is generally used due to the amount of wear done by operation.

7. Petroleum industry - Wikipedia

   en.wikipedia.org/wiki/Petroleum_industry

   Edwin Drake's 1859 well near Titusville, Pennsylvania, typically considered [by whom?] the first true [citation needed] modern [citation needed] oil well, touched off a major boom. [ 19 ] [ 20 ] [ 21 ] [ need quotation to verify ] In the first quarter of the 20th century, the United States overtook Russia as the world's largest oil producer.