50-Series Luxurious Environmentally Friendly Window

Features: 
1) Utilizes advanced TRANSAC-BRIDGE technology, is environmentally 
    friendly, and economizes energy use.
2) Conquers the common problems in aluminum alloy shapes for heat 
    insulation and sound insulation. It has the following 
    characteristics: 
        a) High intensity
        b) High-grade airproofing property
        c) High-grade waterproofing property
3) Not only luxuriously sculptured, but also has advanced technology 
    as its advantage
4) Its entad-opening and entad-closed design is nationally patented
5) Energy efficient
6) It is beneficial to achieving individuality in decorating your 
    house by allowing free assembly of windows and doors, with 
    various series available in a large variety of colors