Features:
1) Thermal insulation cold-bridge sliding window:
    a) Luxurious appearance, double nylon wheels, flexible and smooth sliding
    b) High strength, safety and durability, suitable for high-rises
    c) Surface color is just unlimited. Also wood grain imitation color can be made
2) Profile: available in fusion casting, extrusion, oxidation, sand blasting, 
    electrophoresis, powder spray coating, wood grain transfer