Planetary gear box, small gear box, automatic gear box manufacturer, supplier, factory, exporter--China Tongyu Variable-speed Machinery Co.,Ltd. a manufacturer of variable speed machinery with advanced technology, is a tower of strength in the field of technique renovation. On design, TongYu adopts the three-dimensioned modeling and the finite element analysis, which has shortened the research circle of products, planetary gear box, small gear box, automatic gear box, planetary gear boxes, small gear boxes, automatic gear boxes and guaranteed the reliability of the quality, can provide the transmission resolvable projects with special requirements for the customers much better. On production, having established the producing-studying-researching cooperation with a legion of High Schools, TongYu aims to explore and push the new process technics. At present, TongYu has owned more than 300 sets equipment for process and detection, including a group of world top machinery equipment as REISHAUER. The company always promotes the quality improvement endlessly and pursues the target that the customers are satisfied with. It does upmost to meet or exceed the customers' expectation continually and manufactures the high quality products, planetary gear box, small gear box, automatic gear box, planetary gear boxes, small gear boxes, automatic gear boxes. In addition, TongYu locates in TaiZhou, China, a city which is famous for the developed manufacturing. With its fertile material supply chains and modern logistic soil the company has the capacity of offering the high-powered speed reducer at the same price level for the worldwide users.