6 Cast iron; semi-finished products of cast iron, namely, castings, rolled, forged, drawn, extruded, cast or sintered semi-finished products and articles for use in pumps, valves, industrial machines, industrial vehicles, compressors, turbos, heating, stoves and pan supports; semi-finished products of cast iron, rolled, forged, drawn, extruded, cast or sintered cast iron semi-finished products and articles for use in hydraulics, sanitation, road systems and buildings; foundry moulds of metal other than machine parts for casting metal material; foundry moulds of metal other than machine parts for casting iron material; metal cable joints, metal pot-ends for cables, metal cable trimmings for connecting non-electric cables; ancillary materials for metal cable trimmings in the nature of mechanical metal connectors, mechanical metal cable lugs, metal clamps and roll springs, all of non- electric nature; cast iron lids, pipes of metal, namely, surface water drains and component parts thereof