The present invention utilizes a molding process resulting in {HEAD ~ shell} 60, fully encapsulating {TAIL ~ the unit} 
encapsulating
The present invention utilizes a molding process resulting in { HEAD ~ shell } 60 , fully encapsulating { TAIL ~ the unit }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL