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.铸件展-铸件采购会-国际铸件展-2017第十八届广州国际铸件展会-巨浪展览-The 18th China(Guangzhou )Int’l Casting product Exhibition
