Praxair supplies atmospheric, process and specialty gases, high-performance coatings, and related services and technologies. Among the gases we supply are oxygen, nitrogen, argon, carbon dioxide, helium, and hydrogen. The company's engineering organization designs, engineers and constructs cryogenic and non-cryogenic supply systems around the world. Our Praxair Surface Technologies subsidiary applies metallic and ceramic coatings and powders to metal surfaces in order to resist wear, high temperatures and corrosion.