1.Profile Thickness：1.4mm；Frame：89mm width2.Can install of two track and four track sliding window or two track sliding window with casement gauze sash3.Frame should cut in 90 then connected by screw，sash cut in 45° then connect by the angle connector4.In addition to the special hinge，other accessory can be universal5.Central column，top fixed and bottom designed of tearing，it could reduce the inventory.6.Glass slot：24mm，could install 5mm+12A+5mm or 6mm+9A+6mm tempered glass7.1.5mX1.5m Standard Window：9.2kg/m28.Suitable for Balcony