Feature:
1.well-designed profile stucture wins competitive price.
2.instaled fly screen prevents insects and mosquitoes.
3.special-designed profile prevents the entrance of the rain,which is suitable for raining areas.

Function:
1.installed anti-thief rubber incresses home security and avoids the danger of sash's falling outside.
2.crescent lock adds security and elegant to window
3.well-designed profile and rubber reduces noise and adds smoothness to openning.