Iron and Steel Forging

**Exclusions/References:** - Units mainly engaged in manufacturing finished or semi-finished products from metal forging by machining or other processing are included in the classes covering the manufacture of these products. **Primary Activities:** - Chain, forged steel, manufacturing - Fittings, steam, gas or water, forged iron or steel, manufacturing - Forgings, iron or steel, manufacturing - Horse shoe mass production - Pipe fittings, forged iron or steel, manufacturing - Tube fittings, forged iron or steel, manufacturing - Valves or valve parts, steam, gas or water, forged iron or steel, manufacturing