At this point, one may use device NE1 for {TAIL ~ eddy current segregation} or for {HEAD ~ sensitive metal isolation} using color detection or off color detection 
At this point , one may use device NE1 for { TAIL ~ eddy current segregation } or for { HEAD ~ sensitive metal isolation } using color detection or off color detection
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH