| 摘要 |
PURPOSE: A fourfold pair-glass in which a dual layer polyester film window is applied, which has more improved thermal and sound insulation functions than threefold pair-glass has, is provided to reduce the installation fee and manufacturing cost of a product by reducing an installation hours. CONSTITUTION: A fourfold pair-glass in which a dual layer polyester film window is applied comprises follows. A multi-layered polyester film(10) adheres to a double-side adhesive(20) attached to both side of a square frame space bar(15). An inside glass and an outer glass are fixed to the groove both sides of a window frame(40). |
