Xinxiang Tianlong Group, a military enterprise combined with scientific research, production and service and a Group of production and operation, relies on sophisticated equipment of military enterprises, technical personnel of high-quality, scientific management and strict warranty product system. Now it has became specialized in exportation and products of six series such as non-standard sprocket, gear and transmission, vibration screen, transportation machinery and food filtration machinery, as well as specifications over 80 sorts. The products have passed ISO9002 Quality System and Certificates since 1996 and ISO9001: 2000 Quality System and Certificates since 2004. Tianlong Group presides over import and export trade companies, product-marketing Corporation, product-selling Corporation, sprocket and gear factory, and vibration equipment ***** sprocket and gear factory manufactures non-standard roller-sprocket, non-standard teeth-sprocket, non-standard gear, non-standard steel set and various types of standard sprocket and standard profiled transmission case, all of which are produced by advanced designing methods like CAD, CAM and advanced heat treatment techniques. All these products accord with the standards of ISO, ANSI, DIN, BS and so forth. They have been exported to many countries and regions such as Europe, U.S., and Germany and so on. Besides, our annual output is more than two million pieces.