See features:
Tightness and sealing function directly affect the application function of doors and windows. Good tightness directly affects air tightness, water tightness, as well as heat insulation and sound insulation are proportional to each other; Durability, whether the accessories of smart doors and windows can reach non-decolorization, corrosion resistance, and whether the service life is long; Environmental protection, as energy conservation and emission reduction become the focus sought by all, smart doors and windows, as a large department of building energy consumption, should have environmental protection functions.
See materials:
The thickness, strength and broken bridge aluminum doors and windows of aluminum profiles selected by high-quality intelligent oxide film should be suitable for the relevant national regulations. The wall thickness should be more than 1.2mm, and the tensile strength should reach 157 newton per square meter, the yield strength should reach 108 newtons per square millimeter, and the thickness of oxide film should reach 10 micrometers. If the above criteria are not met, it is inferior intelligent doors and windows and cannot be used.
See processing:
High-quality intelligent broken bridge aluminum doors and windows, careful processing, exquisite installation, good sealing function, and easy switching. Poor quality smart doors and windows, confused selection of aluminum profile series and specifications, processing perfunctory, using saw cutting instead of milling, not according to the requirements of installation, poor sealing function, uncomfortable switch, not only air leakage and rain leakage, but also the phenomenon of glass cracking, but also encounter strong wind and external force, which simply blows or bumps the push and pull department or glass, damaging and hurting people.
