Tiantai Yonggui has independent studying, manufacture and sale capabilities. Manufacturing equipment adopts CNC numerically-controlled equipment with advanced technologies. The company has a provincial-level testing center for connectors, equipment of test is advanced. Products of Yonggui replace largely importing products from occident, and products are supplied for Changchun Railway Vehicles Co., Ltd., BSP in Qingdao, Changchun  Bombardier Railway Vehicles Co., Ltd, and other manufacturers in country, locomotive producers, Bureaus of Railway and Sect of Vehicles. The company has been authorized to independently deal with trade. Some products are being exported to exceed ten countries and states in world. Products of Yonggui are safe and reliable operation, durable life and well-received by customers.