The Sealing Division comprises brands such as KACO, Cooper, and Precix, dedicated to delivering highly reliable sealing solutions for the automotive and components industries.


With over 40 years of accumulation in rubber material development technology, we have mastered the material formula technology of rubber sealing products under various working conditions and possess the ability to develop products simultaneously. We have provided product supporting services for major well-known domestic and foreign automotive manufacturers and can fully meet the complex sealing requirements of the global automotive industry under various working conditions.

The Sealing Division's Testing Center comprises three functional departments: the General Administration Office, Testing Laboratory, and Calibration Laboratory. Equipped with over 200 sets of testing equipment, the center possesses capabilities in chemical raw material testing, rubber compound physical property testing, product performance evaluation, precision instrument analysis, and calibration of measuring instruments.