electric flat cart for painting booth metal part transport 50 tons Commodity Codes (Class and Subclass List) 025-50 COMPRESSOR, PORTABLE, ELECTRIC OR ENGINE DRIVEN, OVER 25 CFM 025-60 COMPRESSOR ACCESSORIES, AIR 025-70 MOISTURE SEPARATORS, NON-REFRIGERATED 031 - AIR CONDITIONING, HEATING & VENTILATING 031-03 AIR