Wholesale Of Construction Materials, Hardware, Plumbing, and Heating Equipment and Supplies ISIC Code 4663. This class includes the wholesale of wood in the rough, wholesale of products of primary processing of wood, wholesale of paint and varnish, wholesale of construction materials: sand, and gravel, wholesale of wallpaper and floor coverings, wholesale of flat glass, wholesale of hardware and locks, wholesale of fittings and fixtures, wholesale of hot water heaters, wholesale of sanitary equipment: baths, washbasins, toilets and other sanitary porcelain, wholesale of sanitary installation equipment tubes, pipes, fittings, taps, T-pieces, connections, rubber pipes, etc. Wholesale of tools such as hammers, saws, screwdrivers, and other hand tools.