Sizzling heat is not shown in the chart at left. The metal stiffens as it cools down and cannot be worked as easily when it cools to lower temperatures. A good rule of thumb for most shaping of mild steel and wrought iron is to work it when heated yellow, and put it back in the fire when it cools to red.
UIO redirects here. For other uses, see UIO (disambiguation). Mariscal Sucre International Airport (Spanish: Aeropuerto Internacional Mariscal Sucre) (IATA: UIO, ICAO: SEQM) is the busiest airport in Ecuador and one of the busiest airports in South America.
Search for an airport. Welcome to World Airport Codes, the place to find over 47,000 airport codes, abbreviations, runway lengths and other airport information.okyo International Airport is the main commercial airport in Tokyo, Japan, and is located about 9 miles (14km) south of Tokyo Station in Åta, National Capital Region.