Enterprise Reliability
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI)
For more than 25 years, our manufacturing facilities have stood at the pinnacle of high-precision door and window systems engineering. Headquartered in Foshan, Guangdong, our modern 180,000 square meter industrial complex is equipped with state-of-the-art CNC machining centers, automated thermal break insertion lines, and advanced vertical powder coating and wood-grain vacuum sublimation units.
We serve top-tier developers, structural engineers, and building material importers globally, with established international project portfolios spanning the United States, Canada, Australia, the United Kingdom, the Middle East, and the European Union. By controlling the entire value chain—from billet extrusion to final hardware assembly—we ensure direct-to-factory cost efficiencies, repeatable precision tolerances within ±0.5mm, and full traceability.
ISO 9001 Quality Management
CE Mark EN 14351-1
AS 2047 Cyclic Testing
UL Fire Resistance Compliant
100+ Industrial Patents
Portuguese clients benefit from full technical dossier preparation, comprehensive CAD shop drawing submittals, and export crating designed for maritime freight arrival at the Ports of Leixões and Sines.