Coins 1) materials: brass, bronze, zinc alloy, iron, pewter 2) the most competitive price 3) oem service is available for customers 4) customers' designs and sizes accepted 5) plating material options: nickel, anti-nickel, black nickel, brass, anti-brass, copper, anti-copper, dyed black, gold, antique gold, silver, and antique silver, antique bronze According to your own choice