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The Sheet Metal Workers' International Association (SMWIA) was a trade union of skilled metal workers who perform architectural sheet metal work, fabricate and install heating and air conditioning work, shipbuilding, appliance construction, heater and boiler construction, precision and specialty parts manufacture, and a variety of other jobs involving sheet metal.
Now representing 75 percent of the US and Canada's skilled sheet metal work force, or about 26,000 members in 1924, the IA was ready to adopt what one member called a "more up-to-date, progressive name" – The Sheet Metal Workers' International Association.
Sheet metal is available in flat pieces or coiled strips. The coils are formed by running a continuous sheet of metal through a roll slitter. In most of the world, sheet metal thickness is consistently specified in millimeters. In the U.S., the thickness of sheet metal is commonly specified by a traditional, non-linear measure known as its ...
CFI, a human gene that encodes the protein complement factor I; Color Fidelity Index, a measure for color rendering developed by CIE which is more detailed than the Color Rendering Index (CRI) measure; Common Flash Memory Interface, an open standard jointly developed by AMD, Intel, Sharp and Fujitsu
Corrugated galvanised iron (CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia), is a building material composed of sheets of hot-dip galvanised ...
The density of sandwich panels range from 10 kg/m 2 up to 35 kg/m 2, depending on the foam and metal thickness, decreasing time and effort in: transportation, handling and installation. All these geometric and material properties influence the global/local failure behavior of the sandwich panels under different loading conditions such as ...
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The process of perforating metal sheets has been practiced for over 150 years. In the late 19th century, metal screens were used as an efficient means of separating coal. The first perforators were laborers who would manually punch individual holes into the metal sheet. This proved to be an inefficient and inconsistent method which led to the ...