Cement block manufacturers.
Commercial radio and television transmitting antenna towers and other electronic equipment requiring outdoor towers and including microwave relay towers and antenna towers for the dispatching of private messages.
Compounding, processing and blending of chemical products, but not including any materials which decompose by detonation.
Contractor's or construction shops.
Garages, at which the sale of gasoline at retail is only incidental to the principal use.
Laboratories for testing and research, excluding the raising of animals for research and excluding the testing of fissionable materials.
Livestock depots, sales' yards and auction barns.
Machine shops and metal products manufacture and tool and die shops, provided they do not include any of the following equipment: punch presses exceeding fifty (50) tons' pressure, drop forges or riveting and grinding machines.
Manufacture and assembling (or any combination of such processes) of products from wood, cork, glass, leather, fur, plastic, felt and other textiles, but not including, as a principal operation, the processing of any raw materials.
Milk depots, creameries and dairies.
Mobile home or trailer sales areas.
Printing and bindery plants.
Railroad right-of-way and necessary uses.
Recreational vehicle sales, service, storage and retail.
Warehouses and storage facilities, including agricultural products. (1979 Code § 5-8-1)