Multi-track balcony window series 
 Features Description: 
 1 3/4 open, energy saving and environmental protection 
 A window of a track design concept, tight and compact shape of the structure, special pan connected device does not fall off, the upper and lower self-locking safety device is safe and reliable, and similar products, the largest 75% of open area to save space, adjust the characteristics of convenient to meet customer requirements, and vigorously promote energy saving green products. 
 Accessories sophisticated, lightweight and smooth 
 Selection of high-precision micro-flow bearing, and resistance to wear corrosion-resistant nylon, pc parts, work together to build a flexible, durable frame window accessories, even up to 2.3 meters floor to ceiling windows can be born light, smooth opening. 
 3 waterproof, senior design 
 Multitrack window series with superior waterproof, high quality 6063T5 aluminum alloy, the slide part of super-thick design up to 4MM wide, to ensure that the finished sub-move does not wear a drainage hole with a long waist, the inside up to 4. 5CM of retaining the water's edge to seal. Senior design to create a powerful drainage system, and lowering the sash crosspiece and bottom of the gap, in order to increase the thermal insulation properties.