... nickel, iron, lead, silicon composed of copper alloys. Brass has the strong abrasion. Special brass and call special brass, its strength ... heating smelting, it is hard to make zinc evaporate. The Romans were the first large-scale may use this method, but smelting bronze ... is unclear. We should pay attention to, the bible mentions of brass, were actually bronze, The Roman COINS, called cry, also be to ...