Other permissible industry, such as brush and broom manufacturing; concrete and plastic products; electrical, light and power, and other utility company installation; electronic products; farm industry - manufacturing and service; glass products manufacturing; jewelry manufacturing, including gem polishing; laundering and cleaning establishments; leather goods manufacturing, except curing, tanning and finishing of hides; motion picture exchange; pharmaceutical products manufacturing; cosmetic products manufacturing; photo finishing; pottery and ceramic products manufacturing, thread and yarn manufacturing; plastics and chemical manufacturing.