Copper alloy rods for use in valves, tire parts, electric cords, bolts, nuts, zippers, rivets, synchronizer rings, parts for watches and cameras, propeller axles, pump axles, food-connected products, machinery and electrical parts, construction materials and chemical industrial materials; copper alloy pipes for use in pipe parts for construction, hot and cold water pipe parts, food-connected products, taps, beverage pipe parts, electric and electronic parts, construction materials, chemical i...