NAICS 331511 — Iron Foundries 
BEA sector: Ferrous metal foundries
Activity: Cast iron brake shoes, railroad, manufacturing
Activity: Cast iron pipe and pipe fittings manufacturing
Activity: Cast iron railroad car wheels manufacturing
Activity: Castings, compacted graphite iron, unfinished, manufacturing
Activity: Castings, malleable iron, unfinished, manufacturing
Activity: Castings, unfinished iron (e.g., ductile, gray, malleable, semisteel), manufacturing
Activity: Cooking utensils, cast iron, manufacturing
Activity: Ductile iron castings, unfinished, manufacturing
Activity: Ductile iron foundries
Activity: Fittings, soil and pressure pipe, cast iron, manufacturing
Activity: Foundries, iron (i.e., ductile, gray, malleable, semisteel)
Activity: Gray iron foundries
Activity: Industrial molds, steel ingot, manufacturing
Activity: Iron castings, unfinished, manufacturing
Activity: Iron foundries
Activity: Malleable iron foundries
Activity: Manhole covers, cast iron, manufacturing
Activity: Molds for casting steel ingots manufacturing
Activity: Molds, steel ingot, industrial, manufacturing
Activity: Pearlitic castings, malleable iron, unfinished, manufacturing
Activity: Pipe and pipe fittings, cast iron, manufacturing
Activity: Pipe couplings, cast iron, manufacturing
Activity: Rolling mill rolls, iron, manufacturing
Activity: Semisteel foundries
Activity: Sewer pipe, cast iron, manufacturing
Activity: Soil pipe, cast iron, manufacturing
Activity: Water pipe, cast iron, manufacturing