Everyone knows it's hard to stop a train, but that doesn't discourage New York Air Brake. The company (NYAB) makes brakes and related train-control equipment; it also provides repair services and replacement parts and sells its freight and locomotive air brake control systems to the rail transportation industry. Its Premtec division builds end-of-car and specialty hose assemblies as well as associated air hose products. In addition, its Train Dynamic Systems unit has expertise in train dynamics and training simulators. NYAB is a unit of Germany's Knorr-Bremse, a major manufacturer of braking systems for both trucks and trains.