... vacuum pump feature voltage range motors for 50Hz and 60Hz in protection class IP(insulation class F) are CE,CCC approved. ... precision CNC machine. 2.Two-pole motor with protection calss IP and insulation F,high temperature resistant to 180°c. 3. ... ,plastic welding,chemical industry,electroplating,feeding material packing,textile,and glass utensil manufacture.Blow,hoover,exhaust,cool,transport,air ...