:6 series alloy with diameter up to 580mm, surface treatment including anodizing etc., good ... : 1, Material: 6060, 6005A etc. 2, Size: diameter 50mm-573mm, thickness: 8-50mm, length:8~12meters 3, Temper: O, T4, T5 ... : mill finish, powder coating, anodized etc. 5, Application: specially used for euipments cleaning in the airport.. square aluminium pipe for train or construction