... strict quality control system. Detial:1. Profile: aluminum alloy, 6063-T5, and so on2. Aluminum thickness: 1.2, 1.4 1.6 ... , powder coated, color can be customized. 4. Glass option: A. single glass: 5,6,8mm (clear/ tempered glass) B. double glazing ... products and excellent service for you. Factory spaces: Qualification certification: aluminum steel plastic steel single glasses side-hung window