After completion of key processes such as profile machining and glass assembly, random sampling is performed on semi-finished products to test dimensional accuracy, structural strength and appearance. Defective semi-finished products are blocked from entering the next process to prevent cascading quality issues.
Every finished window and door is fully inspected after assembly. The inspection covers appearance (surface scratches, color difference, intactness of gaskets), operational performance (smooth opening & tight locking), and the three core performance tests for air infiltration, water resistance and wind load resistance. Selected samples are sent to third-party laboratories for professional testing to guarantee qualified performance.
Quality serves as our core competitiveness and global market passport. All our aluminum window and door products comply with international quality standards and hold authoritative certifications including CE, NFRC, and ISO 9001.
The CE certification verifies that our products meet EU safety, health, and environmental protection requirements, enabling free circulation across European markets. The NFRC certification validates our superior energy performance, fully satisfying the stringent building energy efficiency standards of North America. The ISO 9001 Quality Management System standardizes our entire operation chain, from raw material procurement and production processing to finished product inspection, ensuring full-process quality control and 100% qualified products.
We continuously upgrade our production lines and introduce advanced testing equipment to conduct rigorous inspections on core indicators, including aluminum profile structural strength, glass light transmittance, and hardware durability. This strict quality control mechanism ensures stable and reliable product performance for every project.
Equipped with modern manufacturing bases, advanced CNC processing equipment, automated coating production lines, and intelligent warehousing systems, we realize full-process automated production, covering profile cutting, precision machining, surface treatment, and final assembly. This highly efficient production model greatly improves output capacity while ensuring unified product precision and consistent quality.
We adopt flexible production modes for customized orders, enabling rapid production line adjustment to accommodate windows and doors of diverse specifications and design styles. For large-batch project orders, we implement lean production management to optimize workflows and shorten production cycles. Meanwhile, our standardized supply chain management system and long-term cooperation with premium raw material suppliers guarantee stable and sufficient material supply.
With efficient manufacturing capabilities and rigorous project progress management, we precisely control production schedules to ensure on-time delivery for every order, helping clients advance their construction projects as planned. We provide reliable delivery guarantees for both urgent customized orders and large-scale batch projects with professional execution and efficient production efficiency.