weld assembly
21Eastern span replacement of the San Francisco — San Francisco – Oakland Bay Bridge (eastern span replacement) Artistic rendition of the new eastern span of the Bay Bridge seen from Treasure Island (ca. 2014) Official name To be determ …
22United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
23ship construction — Introduction complex of activities concerned with the design and fabrication of all marine vehicles (ship). Ship construction today is a complicated compound of art and science. In the great days of sail, vessels were designed and… …
24Colorado counties — Adams Alam Arapahoe …
25Colorado — This article is about the U.S. state of Colorado. For the former U.S. territory, see Colorado Territory. For the river, see Colorado River. For the physiographic region, see Colorado Plateau. For other uses, see Colorado (disambiguation). State… …
26Abolitionism — For other uses, see Abolitionism (disambiguation). Anti slavery redirects here. For the British NGO working for the eradication of slavery, see Anti Slavery International. Am I Not A Man And A Brother? Medallion as part of the anti slavery… …
27Jim Riesberg — Infobox State Representative name=Jim Riesberg state house=Colorado state=Colorado district=50th term start=January 12, 2005cite web |url=http://www.leg.state.co.us/Clics2005a/csljournals.nsf/(jouhse)/EAFAFBDB80FC337D87256F790050A6C9/$FILE/Jn12.pd… …
28Pipe (fluid conveyance) — For structural pipe, see Hollow structural section. For other uses, see Pipe (disambiguation). Steel pipes …
29Spot welding — is a type of resistance welding used to weld various sheet metal products. Typically the sheets are in the 0.5 3.0 mm thickness range. The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to… …
30List of pipeline accidents — The following is a list of pipeline accidents: This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. Contents 1 Bel …
