DEDE SEAL CO., LTD was founded in 1990 and has more than 30 years of experience in the sealing industry. Through continuous investment in research, manufacturing, and quality control, DEDE has grown into a professional sealing solutions provider serving customers worldwide. The company remains committed to innovation, stable quality, and long-term customer value, continuously expanding its global market presence.
- Industrial Seals
- Rubber Ring
- Washing Machine Seal
- Agricultural Seal
- Construction Machinery Seal
SEAL

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ISO 9001 Quality Management System
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TS/IATF 16949 Quality Management Standards
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Comprehensive Quality Inspection Procedures
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Quotation and customization solutions
Specific solutions tailored to different industries
DEDE operates a modern manufacturing facility equipped with advanced production and testing systems. The company follows strict quality management procedures and focuses on in-house research, development, and manufacturing. With an experienced technical team and comprehensive production capabilities, DEDE ensures consistent product quality and reliable delivery for global customers.

Advanced Design, Technology Research,
Intelligent Manufacturing
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0+Founded in 1990 and has more than 30 years of experience in the sealing industry. -
0+DEDE is equipped with more than 200 advanced production and testing machines. -
0+Passed ISO 9001 and IATF 16949 international quality management certifications. -
0+Sealing products serve more than 14 kinds of industries across the globe.
Diverse Designs & Techniques to Meet
Your Custom Needs
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OEM & ODM Manufacturing
Full‑service OEM & ODM for industrial sealing products from concept to finished goods.
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Strict Quality Control
Multi‑stage inspection to guarantee stable sealing performance and dimensional accuracy.
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Wide‑range Application Support
Sealing solutions for automotive, agriculture, construction machinery and wind‑power industries.



After-Sales Service
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Rich Industry ExperienceOver 30‑year sealing experience, offering professional global sealing solutions.Read More
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Strong R&D & Production StrengthModern plant with advanced machines, in‑house R&D to guarantee stable quality.Read More
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Authoritative Quality CertificationsCertified by ISO9001 & IATF16949, full‑range strict quality inspection procedures.Read More
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Complete One‑stop ServiceFull pre‑sales, in‑sales & after‑sales support, efficient ERP‑backed supply chain.Read More
Latest News
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Aug 03, 2026DEDE Launches Advanced TG4 Triple Lip Oil Seal For Enhanced Sealing PerformanceDEDE Seal is pleased to announce the launch of its upgraded TG4 Triple-Lip Oil Seal, developed specifically for demanding industrial applications where conve... -
Aug 02, 2026Why Triple Lip Oil Seals Are Becoming Increasingly Popular in Heavy-Duty EquipmentIn recent years, equipment manufacturers have placed greater emphasis on reducing maintenance costs and extending service intervals. -
Aug 01, 2026DEDE Seal Continues To Expand Production Capacity To Better Serve Global CustomersAs global demand for reliable sealing solutions continues to grow, DEDE Seal has further strengthened its manufacturing capabilities by optimizing production...

