What kind of plastic surface friction and wear in stainless steel belt is relatively small?
Plastic itself than metal soft, so it is not bad stainless steel, and if the metal surface smoothness is low (micro Burr) will be broken plastic surface, in the contact surface, if there are hard particles will also be broken metal surface.
No solid modification of pure plastic on the surface of stainless steel wear is relatively small, such as polyethylene, PTFE and so on.
