a unit including a plurality of magnets supported on a yoke, {HEAD ~ the unit} including {TAIL ~ a molding support region}; and 
including
a unit including a plurality of magnets supported on a yoke , { HEAD ~ the unit } including { TAIL ~ a molding support region } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH