{TAIL ~ a shell} fully encapsulating the yoke and the magnets with a continuous layer of {HEAD ~ polymer resin} and free from any fused plastic at the molding support region, wherein the shell contains at least one of an ETFE and PFA materials having 0% to 35% reinforcing fibers 
{ TAIL ~ a shell } fully encapsulating the yoke and the magnets with a continuous layer of { HEAD ~ polymer resin } and free from any fused plastic at the molding support region , wherein the shell contains at least one of an ETFE and PFA materials having 0 % to 35 % reinforcing fibers
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