said hole is covered by {TAIL ~ a sealing label} comprising a metal thin film and {HEAD ~ an adhesive layer} 
said hole is covered by { TAIL ~ a sealing label } comprising a metal thin film and { HEAD ~ an adhesive layer }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD