About Us
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.
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.
Our Product
DEDE specializes in the development and manufacture of industrial sealing products, including: TG4 Oil Seals, O-Rings, X-Rings, O-Ring Kits, O-Ring Cords, Pneumatic Seals, Bonded Seals, VA/VS Seals, Hydraulic Seals, Wind Turbine Seals, Agricultural Oil Seals, Construction Machinery Oil Seals, Automotive Seals Among them, TG4 Oil Seals and O-Rings are the company's core product lines.
Product Application
DEDE sealing products are widely used in: Industrial Machinery, Pumps and Motors, Gearboxes, Hydraulic Systems, Agricultural Machinery, Construction Equipment, Mining Equipment, Wind Turbines, Automotive Systems, Water Treatment Equipment, Marine Applications, Railway Equipment, Petrochemical Industry, Household Appliances
Our products help prevent leakage, reduce contamination, and improve equipment reliability in demanding operating environments.
Production Equipment
DEDE is equipped with more than 200 advanced production and testing machines, supporting efficient manufacturing and rigorous quality control throughout the entire production process.
Main capabilities include: Rubber Molding Equipment, Oil Seal Manufacturing Equipment, Precision Testing Instruments, Material Inspection Systems, Finished Product Testing Equipment
These facilities help ensure dimensional accuracy, sealing performance, and product consistency.
Production Market
DEDE products are exported to many countries and regions around the world. The company serves customers in industries such as automotive, agriculture, construction machinery, mining, wind power, and industrial equipment manufacturing.
With stable quality, competitive pricing, and reliable delivery performance, DEDE has established long-term partnerships with distributors, wholesalers, OEM manufacturers, and industrial users worldwide.
hornor we won
DEDE implements strict quality management systems and manufacturing standards. Production processes are operated in accordance with internationally recognized quality management requirements, including:
ISO 9001 Quality Management System
TS/IATF 16949 Quality Management Standards
Comprehensive Quality Inspection Procedures
The company continuously improves manufacturing and testing capabilities to ensure stable product performance and customer satisfaction.
Product selection support
Material recommendations
Technical consultation
Sample support
Quotation and customization solutions
Order tracking
Production progress updates
Quality inspection control
Flexible inventory support
Fast delivery coordinationTechnical assistance
Product performance follow-up
Application troubleshooting
Continuous customer support
Long-term cooperation service
Supported by SAP ERP management and an efficient supply chain system, DEDE provides fast response times and reliable customer service throughout the entire cooperation process.