100% copper wire : Good conductivity, low resistivity, good thermal conductivity, high intensity.
rotor and stator use cold rolled silicon steel sheet : Good toughness, wear resistance and bearing force fine
steel bearing : Steel die casting, long life, low friction coefficient, flexible and durable.
shell steel : sturdy and durable
complete machine: Low noise, vibration poof, heat dissipation fast, has a very compact structure and attractive appearance