... and doors,aluminium shutter,aluminum thermal break window and door,aluminum curtain wall.3.Surface Treatment: mill finish, ... anodized, powder coated, Electrophoresis, Thermal-break,wood-grained, etc.,4. Alloy: 6063A,6063,6061,6005,6043 ... occupying little space, excellent design.7.Product Features: Air-proof, Water-proof, sound insulation, thermal insulation, Anti-aging, Good combustion- ...