Is the energy saving and thermal insulation effect of SORMANI system 76 narrow frame aluminum alloy system window good?

energy saving and thermal insulation are all good. The window of SORMANI system 76 narrow frame aluminum alloy system is the black technology of the window of Milan in 219. The most important thing is that this window has 1.8mm thick ultra-high-precision aluminum material, patented welded water retaining strip, ultra-wide T-shaped multi-cavity thermal insulation strip, imported hardware system, Germany imported invisible handle, porcelain swimming surface treatment process, TVCOFormaldehyde pollution, multi-cavity structure+T-shaped mesh, cavity.