A display 306 for confirming {HEAD ~ data reception} is attached to {TAIL ~ a container body} 211 of a receiver side container 21 
A display 306 for confirming { HEAD ~ data reception } is attached to { TAIL ~ a container body } 211 of a receiver side container 21
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH