1.The maximun opening possible is achieved when full open the
windows.
2.Panels connected together in a line, can be hinged off both side
jambs to meet in a number of ways. When open, panels remain 90
degrees to open.
3.Meet or exceed industry standard for airtightness, water-proof,
sound insulation, heat insulation.
4. The carrying capacity of the glide system in bottom can reach
180KG, it is smooth, steady and noiseless when fold the window.
5.Double water-proof sealing trips and drainage system in bottom
track thoroughly solve the problems of sealing trip ageing and
leakage.
