Zhejiang Oufu Seals Co., Ltd. is located in Sanxi Industrial Park, Ouhai Economic Development Zone, founded in 1993. It has production lines with an annual output of 5 million crankshaft oil seals and 7 million rubber seals. Currently, the company is one of the largest PTFE crankshaft oil seal production bases in China, and a direct supplier to more than 20 domestic automotive engine companies including China National Heavy Duty Truck Group, Jiangling Motors, Dongfeng Cummins, Dongfeng Commercial Vehicle, Shanghai Diesel Engine, and Guangxi Yuchai. The company is equipped with more than 200 sets of advanced production and testing equipment, as well as a complete quality management system.

Since the 1980s, the company has been devoting itself to independent research on PTFE materials. After 30 years of hardships and unremitting efforts, it has overcome numerous technical difficulties and finally created the oil seal brand "Oufu" with independent intellectual property rights, which belongs entirely to China. Oufu's technological innovation not only fills the gap of domestic independent oil seal brands, but also rewrites the passive history of China's long-term reliance on imported oil seals.

The company has always adhered to the business philosophy of "People-oriented, Cultivating People, Serving People", and taken the quality policy of "Sophisticated R&D, Scientific Formulation, Manufacturing First-Class Mechanical Seals" as the driving force for continuous advancement.