1. The frames width of this series of is 82mm, which is called as 82 series double vertical sliding window;
2. It adopts American PU injection insulation profiles with high strength;
3. The window features exquisite facade, and reasonable opening and ventilating modes;
4. The window has superior air tightness and water tightness;
5. The window structure is safe and does not occupy space.
6. Rolling-type or screw-type lifting, it can be lifted up and down and inclined at a certain angle with flexible operation, which is convenient for ventilation and glass cleaning;
It is connected with bolts at 90o, and is convenient and simple processing with reliable performance.
7. This window can save the manufacturing materials.
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