Westinghouse Air Brake Technologies Corporation (Wabtec), doing business as Wabtec Corporation, is a provider of technology-based equipment and services for the rail industry worldwide. Wabtec operates in two business segments: the Freight Group and the Transit Group. Its product lines in its business segments include: railway braking equipment and related components; freight car truck components; draft gears, couplers and slack adjusters; air compressors and dryers; signal design and engineering services; friction products, including brake shoes and pads; rail and bus door assemblies; track and switch products, and traction motors. On March 12, 2010, the Company acquired Xorail LLC (Xorail). On July 28, 2010, the Company acquired G&B Specialties, Inc. (G&B). On August 20, 2010, it acquired Bach-Simpson Corporation (Bach-Simpson). On November 5, 2010, Wabtec acquired all of the assets of Swiger Coil Systems (Swiger).