1) Utmost energy efficiency and insulation provided by the unique 3-cavity and 3-seal design
2) Beautiful and elegant appearance with curved glass
3) Stronger reinforcement offers higher wind-load resistance
4) Kinds of Hardwares valid: Stainless Steel Friction Hinges; Single Pont Handle or Handle with Gear or Operator.
5) Easy fabrication
6) Kinds of Glassead Valid.
7) Milk White Color or Wooden Color valid.
8) With Nail Fin On frame
9) Can OEM

Can produce special shape of windows/doors accordig to customer's requirement.