The head pipe 1 is a cast product formed of {TAIL ~ a tubular main body portion} 23 and {HEAD ~ the aforementioned supporting portion} 22 integrated together 
The head pipe 1 is a cast product formed of { TAIL ~ a tubular main body portion } 23 and { HEAD ~ the aforementioned supporting portion } 22 integrated together
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH