400	FOUNDRY CASTINGS, EQUIPMENT, AND SUPPLIES
40015  *	Castings, Aluminum
40025  *	Castings, Brass and Bronze
40035  *	Castings, Gray Iron
40037  *	Castings, Lead
40045  *	Castings, Malleable Iron
40047  *	Castings, Steel
40049  *	Castings, Stone and Mortar, etc.
40055  *	Foundry Equipment and Supplies: Bellows, Clays, Flasks, Fluxes, Ladles, Molds, Sand, Shovels, etc.
40060  *	Forgings
40075  *	Ovens, Annealing