DOOR, as one of the leading security turnstile manufacturers in China, delivers innovative pedestrian access control solutions and has recently secured three key credentials that reinforce its commitment to quality and innovation:
1. ISO 9001:2015 Quality Management System Certification (Global Standard)
2. An Invention Patent for Core Access Gate Technology
3. A Design Patent for Product Aesthetics
These achievements demonstrate DOOR's:
✅ Adherence to international quality standards, ensuring product consistency and reliability;
✅ Legally protected core technology highlighting sustained R&D capability;
✅ Accumulated portfolio of nearly 200 patents/software copyrights, applied across R&D, manufacturing, and technical services.
DOOR remains dedicated to providing globally compliant, technology-driven access control solutions for international partners.
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17th Floor, Block C, Digital Innovation Center, Longhua District, Shenzhen, China
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