URI
Notation
672
Caption
Articles of iron and steel in general
Including
Articles of cast iron and steel. Wrought or forged iron and steel ware. Tinware. Chains. Anchors. Cutlery: knives, scissors, shears, hatchets, axes. Small metal articles: pins, needles, buckles, zip fasteners
See also
621.7Mechanical technology in general: processes, tools, machines, equipment
682Smithery. Blacksmithery. Farriery. Hand-forged ironwork
683Ironmongery. Hardware. Locksmithing. Bottling. Lamps. Heating appliances
Broader class
67  Various industries, trades and crafts