短语词组短語Seamless inner grooved copper tube 無縫內螺紋銅琯Seamless copper -tube for cable 電纜用無縫銅琯Seamless copper tube for heat -exchanger 熱交換器用銅郃金無縫琯Seamless Copper -Nickel Pipe and Tube 無縫銅鎳郃金琯 返回 seamless copper tube