GREAT SEAL: Your Trusted Partner for Advanced Sealing Solutions
GREAT SEAL is a leading manufacturer of precision sealing products, including oil seals, O-rings, and gaskets. We are dedicated to solving complex sealing challenges across a diverse range of industries by delivering superior product quality, optimizing costs, and providing exceptional technical support.
Our Industries Served:
We engineer reliable sealing solutions for demanding applications in:
Automotive & Motorcycle
Mining & Drilling
Agricultural Irrigation Systems
Home Appliances
Robotics & Automation
Our Commitment to Excellence:
Our operational excellence is built on a foundation of three core pillars:
Advanced Technology: With core competencies in rubber formulation, precision skeleton stamping, and in-house mold manufacturing, we ensure every product is built to perform.
Rigorous Quality Assurance: Operating under the TS16949 quality management system, our advanced production and testing equipment guarantee that all products meet strict technical specifications, physical performance standards, and practical installation requirements.
Collaborative Partnership: Our efficient teamwork enables clear communication and comprehensive technical support, ensuring we fully understand and address your unique application needs.
At GREAT SEAL, we don't just manufacture seals; we deliver confidence and reliability for your most critical applications.








Since our foundation in 1992, Great Seal has been a trusted manufacturer of high-performance rubber seals, oil seals, and custom sealing solutions. Discover our 30+ years of expertise in rubber compounding and precision engineering.
Our company has maintained TS16949 (now IATF 16949) quality management system certification since 2008, demonstrating our long-term commitment to automotive industry standards and excellence in rubber seal manufacturing.
Recognized as a National High-tech Enterprise in 2021, we leverage advanced R&D and innovative technologies to deliver cutting-edge sealing solutions for automotive, industrial, and specialized applications.
Successfully passed Mann+Hummel's rigorous supplier audit in 2016, becoming an approved bulk supplier of high-quality seals and filtration components for global automotive and industrial applications.
Successfully passed the rigorous quality audit of Volkswagen Beijing Headquarters, achieving certified sub-supplier status for automotive sealing systems and components. Meeting German automotive standards for VW supply chain.