Certified Industrial Capacity
An expansive 180,000 m² footprint with automated CNC machining stations ensures scalable, high-volume production schedules with on-time shipment compliance.
About Us
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Production Base
Spacious digital fabrication hub in Shishan Town, Foshan, optimized for large-scale architectural joinery.
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Annual Production Capacity
High-throughput automated fabrication lines guaranteeing reliable project schedules across global markets.
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R&D Engineering Experts
Dedicated structural designers and façade engineers driving patent-protected thermal and security solutions.
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Trained Specialists
Skilled technical workforce executing precision craftsmanship across every machining and assembly phase.
Corporate Profile
A Global Pioneer in Architectural Entrance Systems
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) represents premier manufacturing scale, engineering reliability, and bespoke architectural capability.
Recognised among the leading export-tier manufacturers in China's building envelope industry, Guangdong Dejiyoupin Doors and Windows Co., Ltd. delivers fully integrated, end-to-end custom solutions for residential, commercial, and institutional projects across the globe. Certified by world-class media Xinhua News Agency as an authoritative industry benchmark, our enterprise pairs European engineering tolerances with industrial manufacturing throughput.
With more than 25 years of research, development, and metallurgical craftsmanship, our operational headquarters in Foshan specialize in custom aluminium entry doors, architectural cast aluminium portals, glass entrances, and high-security stainless steel doors. We partner directly with European architects, building contractors, property developers, and distribution networks—delivering turn-key reliability from initial CAD drafting to jobsite handover.
Enterprise Strengths
Engineered for International Standards
Combining robust supply chains, strict quality verification, and bespoke architectural customization for overseas specifiers.
Patented Thermal & Security Tech
Over 30 patented structural systems, including multi-chamber thermal breaks and concealed pivot hardware meeting European RC2/RC3 burglar-resistance requirements.
Global Testing & Compliance
Fully compliant with international testing codes including CE mark (EN 14351-1), ISO 9001 quality protocols, Australian AS 2047, and North American fire ratings.
Tailored Architectural Customization
Bespoke sizing, integrated smart-access hardware, architectural finishes, anodized or Qualicoat powder coatings, and custom glazing matched to architectural door schedules.
600+ Skilled Technicians
Our collaborative industrial team connects engineering, precision manufacturing, and multilingual sales support aligned directly with European business hours.
Verified Global Track Record
Supplied high-performance entry solutions to more than 100,000 projects across Europe, North America, Oceania, and the Middle East, including premier villa developments.
Manufacturing Infrastructure
Advanced Equipment & Testing Facilities
Precision German machining, intelligent warehousing, and rigorous physical testing ensure zero-defect project fulfillment.
Performance Testing Center
Equipped with state-of-the-art testing rigs for wind load, water tightness, air permeability, sound attenuation, and mechanical cycle endurance.
168 Processes & 38 Inspections
Every profile, thermal barrier, gasket, and surface finish undergoes 38 sequential quality verification checkpoints prior to final export packaging.
8 Automated Production Lines
Integrated processing lines, 6 automated architectural glass lines, and 5 intelligent inventory hubs operating with high manufacturing precision.
German Thermal Strip Insertion
Three automated German strip insertion systems ensure flawless thermal-break integrity, eliminating structural deflection and thermal bridges.
Enterprise Philosophy
Engineering Excellence Through Dedicated Teamwork
Collaborating across R&D, precision manufacturing, and strict international quality control to establish global architectural benchmarks.
600+ Skilled Staff
Cross-functional craftsmanship delivering dedicated service, precise manufacturing, and seamless project management.
End-to-End Control
Complete control over internal extrusions, casting, surface finishing, and assembly for dependable output quality.
Uncompromising Quality
Rigorous material selection from certified aluminum alloys to marine-grade stainless hardware, built for challenging climates.
Shared Vision
Committed to creating sustainable, secure, and architecturally stunning entrance systems for demanding international projects.
Global Supply Chain & Project Partners
Serving top-tier developers, contractors, and builders worldwide with proven industry partnerships.
Ready to Partner with Guangdong Dejiyoupin Doors and Windows Co., Ltd.?
Consult with our engineering team for free CAD shop drawings, technical performance certifications, and direct wholesale pricing for your upcoming European architectural projects.