The part name corresponding to the product No. and the material / characteristic no. Name material / characteristic no. Name material 1: the wind ring is made of high temperature resistant, low warpage and shock absorbing materials. The deformation is small under high temperature, and the motor works stably. 4. The brush holder parts are made of low-noise, long-life electric brush. The motor can work for a long time under low noise conditions. 2. The rear end cover is made of progressive die stamping process, with good product consistency. The motor has high coaxiality and more stable operation. 5. Armature part 1. High temperature enameled wire, the motor can work stably in high temperature environment. 2. Silent bearing, the motor operation noise is small. 3. Fully automatic assembly line manufacturing, higher consistency and stability.