... window delicate and gorgeous, High performance adornment , with the main part of thermal-break aluminum window frame,combining with the Chinese ... height≤2500mm, weight of window sash: 250kg.5.Side frame, Window sash follow the procedure of glue injection after ... concise and bright10.High strength and rigidity, durable, opening deft and agile, no noise11.The wooden frame and aluminum frame are connected ...