Capacity & Punctual Delivery
With an annual output exceeding 1,000,000 square meters, our digitalized enterprise resource systems track every batch, ensuring large-scale contract deliveries are fulfilled strictly on schedule.
Company Profile
About Us
Guangdong Dejiyoupin Doors and Windows Co., Ltd. — Delivering engineering excellence, modern manufacturing scale, and premium custom door solutions worldwide.
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Enterprise Overview
Precision Engineering Built on Scale & Integrity
Guangdong Dejiyoupin Doors and Windows Co., Ltd., operating globally under the prestigious brand DERCHI, is an industry-leading manufacturer specializing in high-performance aluminum, cast aluminum, architectural glass, and stainless steel door systems.
With an expansive 180,000-square-meter standardized production campus in Foshan, China, our company integrates cutting-edge CNC fabrication, automated insulated glass production lines, and high-precision thermal-break assembly systems to produce durable, climate-resilient entrance solutions.
Certified by prominent international standards authorities and recognized as a top-tier Chinese manufacturing brand, we supply commercial developments, luxury residential estates, and hospitality resorts across more than 100 countries and regions worldwide.
Core Competencies
Why Global Contractors Partner with Us
From architectural specifications to on-site performance, we combine industrial scale with detail-oriented craftsmanship.
International Compliance
Our products comply with international building codes, holding CE, ISO 9001, AS 2047 N6 wind pressure certification, and UL fire ratings to facilitate smooth architectural approval and customs clearance.
Tailored Architectural Customization
Every structural opening is unique. Our in-house design engineering department translates custom CAD and BIM shop drawings into reality, matching profile finishes, thermal values, and locking mechanisms.
168 Process Quality Control
Quality control operates under a 168-step standard procedure alongside 38 dedicated inspection check gates, ensuring micron-level machining precision, flawless coating, and seamless water-tightness.
Dedicated Technical Engineering
Our dedicated team of 30+ R&D engineers coordinates directly with project managers and architects, reviewing structural wind load criteria, acoustic dB ratings, and thermal performance parameters.
Standardized Export Logistics
Reinforced protective multi-layer packaging, shock-absorbent wooden crating, and organized container loading minimize transit impact for cross-border ocean deliveries to major worldwide container ports.
Manufacturing Power
Advanced Production Lines & Equipment
We combine advanced German fabrication equipment with intelligent factory automation to achieve zero-defect manufacturing and rapid delivery cycles.
- 6 Fully Automated Insulated Glass Production Lines
- 5 Digital Intelligent Storage & Warehousing Systems
- 3 German Automated Thermal-Break Strip Insertion Lines
- 8 High-Precision Automated Profile Machining Centers
Testing & R&D Center
Equipped with wind pressure resistance, air permeability, and watertightness test chambers to certify real-world durability.
Strict Process Controls
168 manufacturing steps paired with 38 dedicated quality checks ensure structural tolerance within 0.1 mm precision.
Automated CNC Systems
High-speed German cutting and corner-crimping machines guarantee seamless structural integrity across heavy pivot doors.
Thermal-Break Insertion
Automated rolling machines ensure uniform structural shear strength and weather sealing against intense exterior temperatures.
Proven Experience
Global Project Footprint
Trusted across more than 100 countries, with over 100,000 successful commercial, luxury residential, and hospitality door projects installed.
