Precision Sealing Solutions for Global Industries

We foucs on precision rubber sealing solutions under specific conditions. Founded in 2020, our R&D-driven team has pioneered 30+ proprietary material formulas, from low temperature-resistant EPDM to chemical-resistant FKM materials.

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Who Are We?​

Full-service for rubber sealing​

Your challenges fuel our breakthroughs. As a globally trusted partner for industrial sealing systems, OTE combines Chinese manufacturing efficiency with world-class customization.
Our material scientists work alongside your engineers to crack the toughest sealing dilemmas:
Custom Chemistry: Develop proprietary elastomers for unique pH, pressure, or wear demands.
Agile Prototyping: 3D-print functional samples in 24 hours, refine via real-time CAD collaboration.
Guaranteed Compliance: All products meet FDA, REACH, and API standards – no exceptions.
From automotive giants in Germany to oilfields in Texas, we’ve shipped 15M+ precision seals since 2020. Local challenges, global solutions – that’s our promise.

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What can we do?​

Rubber Material

Discover Advanced Rubber Innovations – From NBR to FFKM, Engineered for Extreme Performance.
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Products

Precision Seals Built to Last – Trusted in Hydraulics, Automotive & Beyond.

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Custom Solution

Your Challenges, Our Expertise – Co-Design Seals for Unique Applications.

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Our Technical Service

We don’t just manufacture seals – we co-design them.
Using simulation tools and a material database validated across -60°C to 300°C environments, we transform your blueprints into performance-optimized seals within 72 hours.

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Our Facility