1. Side Frame: 87mm Width; Thickness:2.0mm.2.The series could be two or four sash; also could be Door with Window type.3.Optional glass choice with single or double glass.4.Suitable for Balcony with Thermal break and Anti-sound performance.5.Good sealing performance and simple appearance.6.Door thickness is 2mm, and for 2.5m*2.0m total aluminium usage is 5.0 kg/m2.