A lot or building may be occupied by the following principal uses:
(a) Building construction and assembly.
(b) Club, limited to use by a labor union.
(c) Communication station, center, and studio (not including a tower).
(d) Manufacture, compounding, processing, treatment and assembling of articles or components from previously prepared materials such as but not limited to bone, canvas, cellophane, cement, cloth, cork, feathers, felt, fiber, fur, glass, hair, horn, leather (except a tannery), metal, paper, plastics, precious or semi-precious metals or stones, rubber, shells, textiles, tobacco, wax, wire, wood (except logging camps, sawmills, and planing mills), and yarns.
(e) Manufacture of chemicals and allied products, except fertilizer manufacturing and alcohol plants.
(f) Manufacture, processing and packaging of food and kindred products except grain milling and processing, stockyards and slaughter houses.
(g) Printing and publishing establishment.
(h) Railroad switching, storage, freight yard and maintenance facility.
(i) Truck maintenance facility, including truck repair, fueling and washing.
(j) Truck transfer facility, not including solid waste transfer.
(k) Research, testing and experimental laboratory.
(l) Wholesale trade and warehouse establishment.