售后服务
线上技术支持, 现场安装, 现场指导, 现场检测, 免费备件, 退换货
Watertightness:
inner design easy to draining water
Sealing: imperforate sealant
good sealing performance
Profile inner structure
easy to drain off water ,anti-aging
Product name
Construction Building High Quality Exterior Aluminum Shutters
Surface treatment
Powder coated
Advantages
Heat and sound insulation