The name given sheet-iron coated with tin. It is largely manufactured in South Wales, and of late years in the United States. The plates are dipped in acid and afterwards washed in water to insure their being perfectly clean. They are then toughened by passing them between polished rollers, coated, and passed between steel rollers. Tin-plate is used extensively in the manufacture of kitchen utensils, and for the tins required in preserving meat, fruit, and vegetables.