The Copper Alloy Tube has the good corrosion resistance ability and the high intensity, widely applied to the industry of the tubular electricity-generating heat exchanger, the ship condenser, the water-supplying heater, the distiller, the oil cooler and the water- treating heat exchanger and so on. Product Outside Diameter:3-108 mm Annual Production Capacity:1,000Tons. Galvanized brass tube: coated with zinc (or nickel), applied to the Sanitary Utensil.