Manufactured to meet stringent international standards including AS 2047, CE, and ISO 9001. Our commercial and residential systems deliver superior acoustic damping, multi-barrier weatherproofing, and modern structural aesthetics.
Integrated Production Base
OEM & Engineering Mastery
Technicians & Master Builders
Structural Hurricane Rating
As one of China's top 10 premium door and window manufacturing leaders, Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) controls full-cycle fabrication—from raw billet extrusion and fluorocarbon powder-coating to multi-barrier automated assembly.
Our engineering parameters achieve certified performance under the toughest global building codes, including Australia's extreme N6 cyclonic wind load thresholds and European thermal conservation benchmarks.
Our in-house design engineers convert architectural elevation schedules into fabrication-ready shop drawings, BIM families, and precision thermal modeling to eliminate site assembly variance.
Advanced pretreatment and fluorocarbon (PVDF) electrostatic coatings provide salt-spray resistance exceeding 3,000 hours, preventing pitting and galvanic corrosion in exposed beachfront environments.
The global envelope engineering industry is undergoing rapid disruption driven by localized thermal performance mandates (such as the Australian NCC 7-star energy standards and European nZEB protocols), seismic resilience requirements, and demands for extreme visual transparency. Commercial developers and procurement directors must calibrate their supply chain strategies according to four structural industry transformations:
Traditional non-broken aluminum profiles are obsolete in modern compliance schedules. Sourcing trends prioritize multi-cavity PA66 GF25 insulation strips, warm-edge spacers, and triple-glazed Low-E IGUs filled with Argon gas to attain system U-values under 1.4 W/m²K without compromising sash spans.
Architects demand ultra-narrow sightlines (as slim as 20mm) coupled with monolithic structural glass integration. Advanced bottom-rolling concealed carriage systems now support single pivot or sliding leaves up to 800kg with effortless opening force below 20N.
Motorized concealed actuators, concealed magnetic lock sensors, and automated micro-ventilation systems compatible with BACnet and KNX building automation protocols are quickly shifting from optional luxuries to commercial procurement defaults.
Clear, direct answers regarding compliance, structural limits, delivery protocols, and engineering verification for commercial builders and distributors.
Our aluminum window and door systems are validated through accredited NATA laboratory testing regimens. Systems undergo rigorous physical testing for deflection under ultimate limit state wind loads up to cyclonic N6 levels, water penetration resistance under static and cyclic pressures (up to 450Pa+), and air infiltration resistance below 1.0 L/s·m².
We utilize prime 6063-T5 and structural 6061-T6 virgin aluminum billets. For exterior surface treatments, we provide Qualicoat-certified architectural polyester powder coatings, Qualanod architectural anodizing (up to 25 microns for marine sites), and AkzoNobel/PPG certified PVDF fluorocarbon coatings designed for 20+ years of color retention under high UV radiation.
Upon receiving architectural elevations or structural window schedules, our design department delivers comprehensive 2D CAD shop drawings, connection details, and structural anchoring schematics within 48 to 72 hours. Prototype extrusion corner samples and finish chips are expedited via international air freight within 7 business days.
All fenestration elements undergo five-stage protective packaging: non-marking peelable surface tape, high-density polyethylene edge wraps, moisture-resistant thermal shrink-film, and fully-enclosed ISPM-15 compliant fumigated plywood crates featuring integrated forklift channels and internal shock-dampening cradles.