All warranty terms are fully transparent. For inherent quality defects not caused by human error, external force or force majeure, free repair and replacement will be provided within the warranty period.1、Aluminum Profile – 20-Year Warranty: Free repair or replacement for profile paint peeling, flaking, oxidation and natural deformation occurring within 20 years. 2、Insulated Glass – 5 to 15-Year Warranty: 5 years for standard tempered glass and 15 years for low-iron tempered glass. Free replacement for glass spontaneous breakage, fogging, water ingress and seal failure. 3、Sealing Gasket – 10-Year Warranty: Free replacement of complete original accessories if air leakage or water seepage is caused by gasket aging, cracking or falling off within 10 years. 4、Hardware System – 10-Year Warranty: Free repair and replacement of original hardware such as door locks, hinges and rollers in case of jamming, fracture or malfunction. 5、Screen System – 5-Year Warranty: Free replacement for screen deformation, loose/fallen or damaged mesh within 5 years.

1、Prompt Response: Dedicated nationwide after-sales support within 12 hours. On-site service for common issues within 48 hours. 2、Priority Emergency Service: Priority on-site repair for urgent problems such as water leakage, broken glass, and doors/windows failing to close. 3、Original Factory Parts: All after-sales components are genuine factory products to guarantee original quality. 4、Lifetime Maintenance: Cost-price maintenance service available even after warranty expiration. 5、National Unified Service Hotline: 400-606-1896

1、This commitment certificate is traceable and valid only for genuine brand products. Please purchase through authorized channels to enjoy full official after-sales support.

All warranty terms are fully transparent. For inherent quality defects not caused by human error, external force or force majeure, free repair and replacement will be provided within the warranty period.