6 (Based on intent to use) Cast iron; Cast iron pipes; Cast steel; Castings, foils, powder, and rolled, drawn or extruded semi-finished articles of aluminium or its alloys; Castings, foils, powder, and rolled, drawn or extruded semi-finished articles of copper or its alloys; Castings, foils, powder, and rolled, drawn or extruded semi-finished articles of nickel or its alloys; Castings, foils, powder, and rolled, drawn or extruded semi-finished articles of tin or its alloys; Metal castings; Metal castings for turbines; Metal forgings; Metal forgings for turbines; Metallic moulds for metal casting; Refractory castable mixes of metal; Steel forgings