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About us

We offer high quality, durable, professional and reliable seat belt extenders.

Reliable and trustworthy

Professional test equipment

Seatbeltextenderpro is a professional production of automotive seat belts, automotive airbag components and production line equipment fixture enterprises. We have kinds of professional test equipment, such as corrosion resistance, durable, hardness and tensile test equipment to make every seat belt extender is reliable and trustworthy.

Professional test equipment
A Look at Warehousing for Manufacturers
Smoothly and efficiently

A Look at Warehousing for Manufacturers

Warehouses are important pieces of a manufacturing operation due to their use in storing raw materials and finished goods. Efficient warehousing operations take careful planning and meticulous attention to detail to operate at maximum efficiency. Sainuo has a warehouse of 2000 square meters to ensure their operation runs smoothly and efficiently.  

Care about safety

Four safety certificates

The quality of our seat belt extender are guaranteed with ISO 9001 Quality Management System Certification, Economic Commission of Europe(ECE) Certification, U.S. Department of Transportation (DOT) Certification and China Compulsory Certification(3C).

Free Shipping

On all orders above $59

High Quality

Excellent material

Reliable and Trustworthy

Professional and high quality

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