Manufacture of primary cells and primary batteries nd rechargable batteries, cells containing manganese oxide, mercuric oxide silver oxide or other material
Manufacture of jewellery of gold, silver and other precious or base metal metal clad with precious metals or precious or semi-precious stones, or of combinations of precious metal and precious or semi-precious stones or of other materials
Manufacture of metal household articles (plates, saucers, pots, kettles, saucepans, frying pans and other non-electrical utensils, small hand-operated kitchen appliances and accessories)