The manual operation type is simple and suitable for users of all ages. The pulley system is precision-machined using imported German equipment, ensuring it is not prone to jamming or deformation even after long-term use. Its moisture-proof and corrosion-resistant properties make it suitable for coastal or humid areas. The aluminum surface undergoes a fluorocarbon treatment to form a dense protective layer, slowing down the oxidation process. The concealed drainage hole design prevents rainwater backflow while maintaining a clean appearance. Customization services allow users to adjust the window shape according to the building structure, while standardized production of non-irregularly shaped windows shortens the delivery cycle, balancing personalization and efficiency.
