AABBCC CODE ICON SYMBOL FILE NAME EQUIPMENT TYPE 1B2R05 Cone Roof Parametric Tank.sym Cone roof tank 1B2R04 Cone Roof Tank.sym Cone Roof Tank 1B2R08 Dbl Wall, Dome Roof Tank.sym Double wall, dome roof tank 1B2R07 Dome Roof Tank.sym Dome roof tank 1B2R14 External Floating Roof Tank.sym External floating roof tank 1B2R18 Flat Roof Tank.sym Flat roof tank 1B2R11 Internal Floating Roof Tank.sym Internal floating roof tank 1B2R01 Open Top Tank.sym Open top tank 1B2R15 Tank with Diaphragm.sym Tank with diaphragm