- On based of Series 65 casement windows, glass door and diamond mesh door can be opened and shut down 

  together, which would not cover the space indoor. This diamond wire mesh can fight against mosquitoes and burglars.

- 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 laminating hollow glass, built-in manual/automatic blinds, self-cleaning etc.