Ningbo WTOO Machinery Technology Co., Ltd., founded in May 2000, is a wholly-owned enterprise, covering an area of 31682 square meters, with a plant area of 61000 square meters, and has 950 employees, including 110 research and development personnel. The production and sales volume of miniature deep groove ball bearings with inner diameter ranging from 3mm to 60mm ranks the first in China and the second in the world(From the Bearing Association).

WTOO has successively won the national manufacturing single champion, the national high-tech enterprise, the post-doctoral workstation of Zhejiang Province, the enterprise technology center of Zhejiang Province, and the brand strategy demonstration enterprise of Zhejiang Province. WTOO pays attention to scientific and technological innovation, constantly introduces scientific and technological talents, cooperates with domestic bearing industry experts and scientific research institutions, and vigorously implements the technical innovation project. In October 2010, it acquired and held two bearing companies in Shanghai, established talent centers, technology research and development centers, and sales centers, and formed a group business model.