slaughterhouse equipment; namely, equipment and machinery for cutting, boning, and curving of meat and for thermal processing of meat and meat products, vacuum packaging equipment for meat, cheese, fish and other food products, equipment and machinery for processing by-products from the meat industry, equipment for grading of meat and carcases including hog carcases; control valves for oil and gas plant and equipment; paper towels and wipes and dispensers for paper products; signs including directional signs

consulting engineering services, such as process engineering, plant design, engineering studies, procurement of utilities and equipment; pollution control, and other design, procurement and construction project services for new or expanded plant facilities for the meat industry and allied industries