1,) Premiun-grade steel for the shaft of Armature( see attachment)2,) High-grade magnetic copper wire-97% pure cooper for superior current flow and to withstand extreme temperatures. 3,) Sealed thrum and insulative material to stop the dust or scrap in, to get the more lifetime. 4,) High-efficiency commutator to perfect the performance of Armatures. 5,) Specialized machining for different countries requirement of voltage and frequency. 6,) Advanced producing equipment and skilled workers for the products making. (see attachment )
