Global Authority in Architectural Entrance Systems
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) is an internationally acknowledged manufacturer committed to the engineering, design, and fabrication of elite entrance systems for residential and commercial architecture.
With 25+ years of production experience, our facility bridges structural reliability, modern architectural beauty, and climate-specific thermal efficiency. We supply global importers, commercial contractors, and villa owners with end-to-end bespoke solutions engineered to adhere to strict testing parameters.
Engineered Capabilities & Verified Delivery
Our vertically integrated manufacturing operations reduce export friction, guarantee consistent structural quality, and streamline cross-border logistics.
Capacity Guarantee
Our 180,000 m² industrial facility accommodates high-volume commercial runs while simultaneously managing custom architectural one-offs without production bottlenecks.
German Automation
Equipped with specialized German profile milling machinery and automated strip insertion units to secure zero-error tolerances and weatherproofing excellence.
Global Certifications
All door configurations undergo stringent structural, windload, acoustic, and thermal inspections compliant with CE, ISO 9001, AS 2047, and UL fire standards.
Bespoke Engineering
Full CAD shop drawings, custom extrusion profiles, motorized multipoint lock adaptations, and finishes tailored to the exact requirements of architects and builders.
Technical Support
Direct communication channels with experienced English-speaking structural engineers ensure every technical dimension, threshold, and jamb detail aligns with your site setup.
International Export Logistics
Reinforced sea-freight crating and FOB/CIF management ensure safe shipment handling to major international hubs across the Americas, Middle East, and Asia.
Factory Infrastructure Built to Precision
Our intelligent manufacturing park features six specialized glass processing systems, five smart logistics warehouses, and high-precision testing stations.
Testing Center
Certified in-house laboratory verifying air permeability, water tightness, structural wind resistance, and multi-cycle hardware resilience.
Rigorous QA Inspection
168 detailed production procedures and 38 independent quality verification checkpoints across raw profiles, finishes, and pre-packing.
Intelligent Automation
Eight computerized assembly lines executing micron-accurate cutting, corner crimping, gasket fitting, and insulated core packaging.
Thermal Strip Insertion
Three German automated strip insertion units ensure consistent structural rigidity and thermal insulation across all profile depths.
Core Operating Philosophy
Our multi-disciplinary teams unite design ingenuity, metallurgical engineering, and dependable supply chain management.
Dedicated Workforce
Over 600 skilled technicians and craftspeople ensure hand-finished refinement and flawless industrial execution.
Full Supply Integration
Complete control from initial architectural CAD detailing and aluminum alloy casting to final protective crating.
Uncompromising Quality
Premium fluorocarbon coatings, non-corroding marine alloys, and heavy-duty concealed hinges built for decades of operation.
Pioneering Standards
Setting new industry standards for large-dimension entrance systems, sound insulation, and thermal comfort.
Trusted Worldwide Across Over 100,000 Projects
Our custom entrance solutions serve architects, building contractors, and real estate developers across more than 100 countries globally.
