- It solves the problems of poor waterproof and soundproofing functions on ordinary sliding windows, 

  and inherits the characteristics of sliding windows.

- Adopt Hollow Low-E Glass and German accessories,while each accessory is tested to 100,000 plus cycles.

- Adopt EPDM top sealing strips, which have good performance on air tightness and sound insulation .

- These glass can be upgraded with laminated hollow glass, with built-in manual/automatic blinds, or self-cleaning etc..