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HOK is a leading rubber seal manufacturer with over 30 years of experience in oil seal design, manufacturing, and quality control. As a professional supplier of rotary shaft oil seals, O-rings, valve stem seals, and other rubber molded parts, we deliver reliable sealing solutions trusted by industries worldwide.
Changzhou HOK Seal Material Co., Ltd. was established in March 2009 as a high-tech enterprise specializing in the design, R&D, production, and sales of composite sealing systems. With over 300 employees, including 20% dedicated to technical and R&D roles, we operate an independent R&D center, mold machining center, research test center, and three large production bases.
HOK is a trusted manufacturer with 30+ years of experience in oil seal technology. We provide customized sealing solutions for automotive, rail transit, heavy vehicles, wind power, and photovoltaic industries. Our advanced automated production lines and high-efficiency compression molding technology ensure consistent quality and high output.
Explore our wide range of precision-engineered rubber seals, designed for durability, performance, and reliability across diverse industrial applications.
Designed for dynamic sealing in rotating equipment. Resistant to high pressure, temperature, and wear.
Ensures leak-free performance in automotive and heavy vehicle suspension systems.
Prevents oil leakage in internal combustion engines. High thermal and chemical resistance.
Protects bearings from contaminants and retains lubrication in industrial environments.
Low friction, high chemical resistance. Ideal for extreme temperature and aggressive media.
Standard and custom O-rings in various rubber materials for static and dynamic sealing.
High-performance sealing for fuel systems. Resistant to gasoline, diesel, and biofuels.
Metal-rubber composite seals for high-pressure hydraulic and pneumatic applications.
Products can be customized according to customer needs, including size, material, and performance.
Advanced manufacturing processes meet various performance requirements and environmental conditions.
Advanced automation ensures consistent product appearance, dimensional accuracy, and high yield.
Efficient compression mold molding technology improves overall output and delivery speed.
Equipped with high-end testing systems to ensure durability, reliability, and extended service life.
Wide range of high-performance rubber materials to suit complex and harsh operating environments.
HOK seals are trusted in critical applications across multiple industries, ensuring safety, efficiency, and long-term performance.
Visit us at booth #8.1E116 to explore our latest sealing innovations for the automotive industry.
We showcased our advanced sealing solutions for wind turbines and renewable energy systems.
For inquiries, quotes, or partnership opportunities, visit the official HOK Seal website to contact the team directly.
Email: info@hokseal.com
Phone: +86 519 68880137
Address: No.2188, Longcheng Road, Zhonglou District, Changzhou, Jiangsu Prov., China
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