unwrought and partly wrought common metals and their alloys; namely, steels sold in bar, rod, billet, sheet, strip and roll form or in rough shape to be further manufactured; forgings used for machinery components in mechanical engineering, hydroelectric industry, petrochemical industry, nuclear industry, power generation industries, iron and steel manufacturing industry, shipbuilding industry, tube industry, rubber industry, paper industry and plastic industry; metallic rolls and cylinders u...