Professional Provider of Door Hardware Since 2001

Excellence in Door Viewer & Hardware Manufacturing

ISO9001 certified manufacturer with UL approved fireproof door viewers. Serving customers worldwide with premium quality and innovative optical design.

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ISO9001 Certified

Strict quality management system ensuring consistent product excellence since 2001.

UL

UL Approved Fireproof

UL certified fireproof door viewers meeting USA and Canadian fire protection standards.

Advanced R&D

Pioneering optical design since 1978 with patented 180° wide-angle door viewer technology.

Global Export

Trusted by customers worldwide with own import & export rights and long-term partnerships.

Residential Entrance Doors

From villas and apartments to individual homes, GZ OPTIC provides high-quality, easy-to-install door viewers that enhance home security and privacy. Our products offer wide viewing angles, premium materials, and durable performance to suit various door types and architectural styles.

OUPU Factory Workshop
20+ Years Experience

Professional Manufacturer of Door Viewers and Lock Cylinders

Beijing Oupuoptic Instrument Co., Ltd. was founded in 2001. Our production facility is located in Zhongshan, Guangdong Province, covering an area of approximately 7,000 square meters and employing nearly 100 people. Our door viewers are exported to customers around the world, with markets covering Europe, the Americas, Southeast Asia and other regions.

Since its establishment, OUPU has remained committed to manufacturing high quality products and providing professional, attentive services. Through consistent product quality and continuous service improvement, we have earned extensive customer support and established long-term, stable partnerships with customers worldwide.

Learn More About Us
2001 ESTABLISHED
100 TEAM MEMBERS
7000 m² PRODUCTION AREA
800000 UNITS ANNUAL CYLINDER OUTPUT

Comprehensive Door Hardware Services

OUPU Manufacturing Services
20+ Years Experience
100+ Team Members

Product & Customization Services

With in-house R&D and precision manufacturing capabilities, we provide one-stop customization services for door viewers, lock cylinders and related door hardware.

  • OEM/ODM Development & Manufacturing
  • Product Specification & Structure Customization
  • Material & Finish Customization
  • Laser Marking & Private Branding
  • Packaging & Label Customization
  • Sample & Technical Support

Quality & After-Sales Support

From production confirmation and quality inspection to order delivery, we provide stable and efficient support throughout the entire process.

  • Pre-Production Confirmation
  • In-Process Quality Control
  • Final Inspection & Quality Records
  • Order & Delivery Tracking
  • Spare Parts Support
  • Responsive After-Sales Assistance

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