Changchun NOK-Freudenberg Oilseal Co., Ltd. (CNF) was established in 1992 as an automobile components supplier in Changchun City. It is a joint venture between NOK Corporation (Japan) and Freudenberg Sealing Technologies Group (Germany), and is dedicated to providing locally produced or imported sealing products to the rapidly growing Chinese market, as well as providing sealing solutions and services to many domestic, European, American, and other Asian customers in the automobile and general industries.

The company currently has more than 500 employees and produces 120 million seals annually. Its services cover all mainstream domestic automobile companies, and its products are widely used in key parts of automobile engines, transmissions, chassis, and shock absorbers.

On May 11, 2021, the new factory project of Changchun NOK-Freudenberg Oilseal Co. Ltd., with a total area of 32,558 square meters and a total investment of 520 million yuan, started construction at No. 135 Fengshuo Road in Changchun Automobile Economic and Technological Development Zone. An intelligent and humanized seal factory with intensive land use, scientific layout, and personnel diversion was built.

On July 20, 2022, the handover ceremony of the new factory was officially completed;

On the occasion of the 30th anniversary of the establishment of CNF on October 25, 2022, the new factory was fully relocated;

On March 20, 2023, CNF held the opening ceremony of the new factory.