About HOK
Leading Rubber Seal Manufacturer in China
Changzhou HOK Seal Material Co., Ltd is established in March 2009 which is a high-tech enterprise specialized in design, R&D, production and sales of composite sealing systems. |

With More Than 7ooo Kinds Of Specifcations
Currently our company has more than 300 employees, among which technicians and R&D account for some 20% of the total number of the employees. Our company is equipped with independent R&D center, Mold Machining Center, Research &Test center and three big production bases.
Our company has already passed the ISO/TS 16949:2009 quality management system certification and ISO 140001 environmental management system certification contentiously.
Persisting in innovation, improvement and quality, our company has always adhered to the tenet of gratitude to customers and growing together, strictness in process control and emphasis on the continuous improvement. Our company will satisfy and reward our customers with superior quality products and high efficiency service.
30+
Industry
Experience
50+
Patent
Certificate
60+
Export
Countries
Factory Environment
Testing Devices
A wide range of testing equipment, perfectly simulate various working conditions required by different customers(such as speed, oil temperature, and pressure)Oil seal diameters range from 5 to 1800 mm
Leading Rubber Seal Manufacturer in China
Changzhou HOK Seal Material Co., Ltd is established in March 2009 which is a high-tech enterprise specialized in design, R&D, production and sales of composite sealing systems. |

With More Than 7ooo Kinds Of Specifcations
Currently our company has more than 300 employees, among which technicians and R&D account for some 20% of the total number of the employees. Our company is equipped with independent R&D center, Mold Machining Center, Research &Test center and three big production bases.
Our company has already passed the ISO/TS 16949:2009 quality management system certification and ISO 140001 environmental management system certification contentiously.
Persisting in innovation, improvement and quality, our company has always adhered to the tenet of gratitude to customers and growing together, strictness in process control and emphasis on the continuous improvement. Our company will satisfy and reward our customers with superior quality products and high efficiency service.
30+
Industry
Experience
50+
Patent
Certificate
60+
Export
Countries
Factory Environment
Testing Devices
A wide range of testing equipment, perfectly simulate various working conditions required by different customers(such as speed, oil temperature, and pressure)Oil seal diameters range from 5 to 1800 mm


















