TIANYI aluminum shutter features high rate lighting, good ventilation, secure and weather-proof,easy installation. our aluminum shutter enjoy good reputation all over the world. Here is some detail information about our aluminum shutter/louver, 1. Profile: aluminium alloy, Alu6063, thermal break and aluminum profile with wood surface is also a great option for the clients. 2. Profile thickness: 1.4mm, and thickness bigger than 1.4 mm is available but cost more time. 3. Surface treatment: anodized, electrophoresis, powder coated, PVDF. 4.Hardware: both German and Chinese hardware are available. Besides our company's size, we also can provide the products according to your option.