Praxair Incorporated operates in the Industrial gases sector. Praxair, Inc. (Praxair) is an industrial gas supplier. Praxair's primary products for its industrial gases business are atmospheric gases (oxygen, nitrogen, argon, rare gases) and process gases (carbon dioxide, helium, hydrogen, electronic gases, specialty gases, acetylene). It also designs, engineers, and builds equipment that produces industrial gases for internal use and external sale. Its surface technologies segment, operated through Praxair Surface Technologies, Inc. Praxair serves approximately 25 industries, such as healthcare and petroleum refining; computer-chip manufacturing and beverage carbonation; fiber-optics and steel making; and aerospace, chemicals and water treatment. During the year ended December 31, 2010, 94% of revenue was generated in four geographic segments (North America, Europe, South America and Asia). In January 2012, the Company acquired Welders Industrial Supply, LLC. In our complete report available for purchase the company is compared to: Air Products and Chemicals, Inc., Lubrizol Corporation (The) and Huntsman Corporation.