... series alloy, with complex sections, max.length 30 meters, used for subway, inter-city train,light rail. Aluminum profiles: 1,Material ... : 5052, 5083, 6005, 6005A, 6N01,6061, 6063, 6082, 7003,7N01,7005,7020. 2, Size: width 50~938mm ... and light rail, inter-city train, monorail etc.. hollow aluminum extrusion profile applied for CRH