aluminium windows 1) available in any sizes as per your needs and elegant, economical and popular use 2) surface treatment & color: powder coating, anodizing, pvdf coating, electrophoresis, mill finished, wooden coating, etc, and all colors depend on buyers requirement. 3) window frame: aluminium thickness: 1.4mm~1.6mm 4) glass: single or double. Window screens are available. 5) hardware: made in china, of high quality. 5mm foam layer inside and packed with hard cardboard which is suitable for container shipping. We also offer special package according to buyer's requirement.