Martin Mechanical Transmission Parts Transmission Parts Co., Ltd. is a major U.S. manufacturer of Martin Sprocket & Gear, Inc., A wholly owned subsidiary.Bigong Si in a total of five factories in China for the production of high quality domestic and international markets synchronous wheel, sprocket, V pulley, sleeve, coupling, and other various types of bushings.The philosophy of "customer first, forge ahead" business philosophy, the "customers first" principle to provide our customers with quality service. Welcome customers to visit!
