Silicon iron; ores of metal; manganese; molybdenum; nickel; alloys of common metal; magnesium and its alloys; wire of common metal; aluminium and its alloys; manganese ore; tin and its alloys; vanadium; zirconium; hafnium; chromium; molybdenum iron; titanium iron; filings of metal; zinc and its alloys; tantalum; titanium; tungsten iron