Global Industrial Network & Reliable Manufacturing
For over 30 years, DoorHan has served as the trusted engineering and production powerhouse behind complex industrial facilities, logistics hubs, agricultural terminals, and premium residential architecture worldwide.
From Raw Material to Impressive Architectural Solution
Unlike conventional assembly suppliers, DoorHan maintains complete control over the entire industrial manufacturing lifecycle. We process raw steel roll metal, polyurethane foam insulation, stamp precision guides, curl high-tensile torsion springs, assemble hydraulic leveling cylinders, and program proprietary electronic PCBs entirely in-house across our specialized factory clusters.
Why Vertical Integration Matters
For general contractors, EPC developers, and regional dealer networks, this total vertical integration eliminates third-party component bottlenecks, locks in predictable project economics, and guarantees exact SLA delivery schedules under the strictest architectural specifications.
Engineered for Project Reliability & Direct Supply
We understand the critical realities of industrial construction. Our corporate partnership framework is built specifically to ensure reliable product supply and high manufacturing quality.
Competitive Pricing & Direct Supply
Direct factory supply ensures optimal commercial pricing, flexible partner conditions, and reliable product availability across global regional hubs.
Quality Assurance & Certification
Full compliance with international standards, official factory warranties, and technical support from experienced DoorHan engineering specialists.
High-Performance Production Divisions
Our production capacity covers the entire spectrum of enclosure structures and automation, enabling single-source supply for complex construction tenders.
Division 01
Industrial & Residential Doors
High-speed spiral gates, fire-resistant curtains, panoramic aluminum doors, and residential sectional doors with thermal breaks.
Division 02
Loading Dock & Logistics Systems
Electrohydraulic dock levelers, folding and inflatable dock shelters, external loading vestibules, and mobile yard ramps.
Division 03
Automation & High-Speed Systems
High-duty shaft and linear operators, anti-vandal toll barriers, hydraulic anti-ram bollards, and intelligent control PCBs.
Discuss Your Architectural Specification or Dealer Application
Send us your project blueprint, specification list, or general contracting proposal. Our technical executives will calculate custom commercial terms, production slots, and technical integration.