... anodizing etc., good conductivity and under high pressure Aluminum tube/pipe: 1, Material: 6060, 6005A etc. 2, Size: diameter 50mm ... 8-50mm, length:8~12meters 3, Temper: O, T4, T5, T6 and H112 etc. 4, Surface treatment: mill finish, powder coating ... , anodized etc. 5, Application: specially used for euipments cleaning in the airport.. hollow aluminium pipe for cleaning snow in airport