Detailed Product Description

Features: 
1) Wind-resistance and vibration absorption: straight materials 
2) Hollow inner frame with good wind and vibration resistance
3) The inner and outer frames have flexible joints and triple seals 
4) One glue strip and two wool strips for excellent air and water 
    tightness and to ensure that the windows slide freely and silently
5) Oblique stepped structure and drain in the downward slide to 
    ensure free water discharge without any back-flow
6) The window's hollow glass structure provides excellent sound and 
    thermal insulation, and meets state requirements on environmental
    protection and energy conservation
7) Thief-proof, airflow barring, and loose-proof units
8) Unique multi-point locks that are stable, tight and safe
9) Elegant style, streamlined design and outstanding decorative effect
10) The corrugated glazed-window may be internally or externally fixed 
     in the same slide. It effectively prevents mosquitoes and flies from
     entering, has excellent tightness, decorative effect 
     and is especially suitable for mosquito-prone southern regions.
11) Unique design saves materials, cost and reduces weight and makes
     fabrication much easier
12) When tested by the Fujian Architectural Doors, Windows and Curtain
     Quality Supervision and Inspection Station, "three performances" of 
     the product were assessed as reaching grade A1