Hubei Tri- Ring clutch Co. , Ltd. Lies in High Technology Developing Area of huangshi city, Hubei province, Covering 1. 12 million sq. M, Building area 0. 6 million sq. M. With reasonable layout and tasteful structure, Hubei Tri- Ring Clutch Co. , Ltd. (hereafter referred as HTCC) has been festowed a name of A beautiful Enterprise Like Garden. The company was established 1954, And joined in The DFAC Group in 1982. In 1989 the company Imported the diaphragm spring clutch and releasing bearing manufacturing technology and the key equipments from Valeo in France and built a brand- New factory and manufactured the diaphragm spring clutch. The company's capacity is 1. 8 million sets of diaphragm clutch. The company owns 468 sets of producing equipments, In which the key equipments such as