This U.S. industry comprises establishments primarily engaged in manufacturing and packaging soaps and other detergents, such as laundry detergents; dishwashing detergents; toothpaste gels, and tooth powders; and natural glycerin. Cross-References. Establishments primarily engaged in-- ? Manufacturing synthetic glycerin--are classified in U.S. Industry 325199, All Other Basic Organic Chemical Manufacturing; and ? Manufacturing shampoos and shaving preparations--are classified in Industry 325620, Toilet Preparation Manufacturing.