Praxair, Inc. engages in the production, distribution, and sale atmospheric and process gases, as well as surface coatings in North America, Europe, South America, and Asia. The company offers atmospheric gases, such as oxygen, nitrogen, argon, and rare gases; and process gases comprising carbon dioxide, helium, hydrogen, electronic gases, specialty gases, and acetylene. It also designs, engineers, and builds equipment that produces industrial gases; and manufactures precious metal and ceramic sputtering targets used primarily in the production of semiconductors. In addition, the company supplies surface coatings consisting of wear-resistant and high-temperature corrosion-resistant metallic and ceramic coatings and powders to the aircraft, energy, printing, textile, plastics, primary metals, petrochemical, and other industries. Further, it provides electric arc, plasma, and oxygen fuel spray equipment, as well as arc and flame wire equipment used for the application of wear-resistant coatings; and distributes welding equipment purchased from independent manufacturers. The company sells its products primarily through independent distributors. It serves various industries, such as healthcare, petroleum refining, computer-chip manufacturing, beverage carbonation, fiber-optics, steel making, aerospace, chemicals, and water treatment industries. The company was founded in 1907 and is headquartered in Danbury, Connecticut.