Tianma Bearing Group Co., Ltd. of Zhejiang Private Enterprises evolved over 50 years specializing in precision bearings and heavy-duty CNC machine tool manufacturing experience, is the only Chinese set "material, bearing equipment" in one of the three major industrial chain of high-end equipment manufacturing enterprises, among the "China machinery industry hundred", "China's top 500 private," and became a public company in 2007. The company has six production bases in Hangzhou, Beijing, Chengdu, Qiqihar, Guizhou, Huzhou and other places, nearly 10,000 employees. There's a state-level enterprise technical centers, five provincial-level enterprise technical centers, two post-doctoral research station. TMB produced brand precision bearings and "homogeneity" brand heavy-duty CNC machine tool products targeting high-end, reached the international advanced level, won the "Chinese famous brand", "the most competitive brand" and "China Famous Trademark", widely used in aerospace, aviation, rail, wind power, nuclear power, automotive, shipbuilding, marine engineering and other major sectors of the national economy, and into Europe, Japan and other overseas markets.