{HEAD ~ The case} is formed of {TAIL ~ rigid material}, is hermetically connected to an opening of the airbag and is provided with the air discharge port 
{ HEAD ~ The case } is formed of { TAIL ~ rigid material } , is hermetically connected to an opening of the airbag and is provided with the air discharge port
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH