From Figure 1 motor show generally consists of steel or aluminium outer cover, station เตอร์ท made from sheet steel some sorting compression overlap. With copper coil insulated is embedded in the groove stator and the plated or coated with insulation, wanis Choi and drying to withstand temperature increases. From the use of some kinds of motors or some factories may be through a process of VPI (Vacuum Pressure Impregnation).
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