SMART-SLIDE double-leaf sliding blacony windows

SMART-SLIDE double-leaf sliding door. Window leaf - a movable or immovable part. The movable sash is attached to the frame with hinges, however, fixed glazing is possible in one version - fixed glazing in the frame. Fixed glazing otherwise FIX is a non-opening window without hinges and handles. There is a possibility of any configuration of the SMART-SLIDE double-sash terrace windows.