In the wired circuit board, {TAIL ~ the first metal thin film} is formed between the metal supporting board and {HEAD ~ the metal foil} 
In the wired circuit board , { TAIL ~ the first metal thin film } is formed between the metal supporting board and { HEAD ~ the metal foil }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD