23 CHEMICAL, PETROLEUM AND OILFIELD TREATMENT, PROCESSING AND HANDLING EQUIPMENT-NAMELY, OIL AND GAS SEPARATORS, EMULSION TREATERS, REGENERATORS, DESULFURIZERS, ABSORBERS, STABILIZERS, FREE WATER KNOCKOUTS, OIL SKIMMERS, HYDROCARBON RECOVERY UNITS, PIPELINE SCRUBBERS, BLOW CASES, FLOW SPLITTERS, DEGASSIFIERS, RECIPROCATING PUMPS AND COALESCERS; AGRICULTURAL TREATING, PROCESSING, STORING AND HANDLING EQUIPMENT FOR FARM AND COMMERCIAL USE-NAMELY, GRAIN SPREADERS, GRAIN AND FEED AERATION UNITS, CLEANERS, AUGERS, PNEUMATIC CONVEYORS AND TANK LOADERS AND UNLOADERS; INTERNAL COMBUSTION ENGINES; CENTRIFUGE SYSTEMS WITH AUTOMATIC CONTROLS; AND LIVESTOCK FEEDING EQUIPMENT