14 IRON AND STEEL AND IRON AND STEEL PRODUCTS-NAMELY, STEEL INGOTS, SEMIFINISHED COMMON AND SPECIAL CONTINUOUS CAST OR ROLLED STEELS, BARS, SHEETS, STRIP, BLACK IRON AND TIN PLATE, FORGINGS, STAMPINGS AND CASTINGS, RAILS AND STATIONARY AND ROLLING STOCK AND SEMI-FINISHED ROUGH SHAPES USED IN THE MANUFACTURE OF ARTILLERY AND CANNON