One consideration is that exterior-grade windows come with thermal insulation and double-glazed units; these elements are not usually needed inside the home. Where you don’t need specific sound or insulation requirements of double-glazed panes, single-glazed glass creates a better overall look. Internal single-glazed windows are also slimmer in most cases.
Aluminium Profiles Quality Test │ Wall Thickness
The bridge cutoff aluminum alloy profiles have strong air tightness, water tightness, heat insulation and sound insulation, and are suitable for various specific applications in the door and window industry.