Copper-plated bullets are lead bullets that are electroplated with a copper jacket. ISO 4520 specifies chromate conversion coatings on electroplated zinc and cadmium coatings. The product can be electroplated on stainless steel or indium tin oxide. Nickel-Cobalt is a common electroplated alloy. Copper can be directly electroplated onto ruthenium, in contrast to tantalum nitride. Brass plating, which is an electroplated finish, is applied in a bath and is durable. Indium electroplated into the depressions formed the collector and emitter. Zamak can be electroplated, wet painted, and chromate conversion coated well. Allen (hex-headed) zinc electroplated steel bolts replaced the slotted bolts. The nickel solution can then be electroplated onto the aluminium cylinder bore. Galvannealed sheet can also be produced from electroplated zinc steel sheet. Edward Adler and Edward Norris created a mesh barrier from electroplated nickel. Since 1992, the coins are minted in steel and electroplated in copper, making them magnetic. The decking can instead be electroplated with zinc. Today's tinplate is mild steel electroplated with tin.