That means the window is double-glazed, which is a good thing ... followed by single-hung, bay and sliding windows. Each ...

It features 32 or 44 mm double or triple glazing, and sliding window surfaces of up to 18 m² for large sliding glass doors. The Vitrocsa sliding version is available in several ranges ...

Cero Sliding Windows by Solarlux use thermally insulated double glazing and 34mm aluminum profiles to deliver a 98% glass composition with a symmetrical and minimalist design.