a bonding material joins the shell and the metallic sleeve, {HEAD ~ the bonding material} including {TAIL ~ an ETFE powder} and an elastomer 
including
a bonding material joins the shell and the metallic sleeve , { HEAD ~ the bonding material } including { TAIL ~ an ETFE powder } and an elastomer
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH