Attention is currently focused on die casting copper rotor in anticipation of saving energy regulation reinforced from next spring in Japan. Copper rotor has higher electroconductivity than aluminum rotor, and it improves efficiency of motor.鑄件展-鑄件采購會-國際鑄件展-2017第十八屆廣州國際鑄件展會-巨浪展覽-The 18th China(Guangzhou )Int’l Casting product Exhibition
