Consequently, the shutter plate 15 can be brought into close, uniform contact with the end face 3a of {HEAD ~ the first outlet pipe} 3 thereby ensuring {TAIL ~ the prevention} of leakage of the exhaust gas 
Consequently , the shutter plate 15 can be brought into close , uniform contact with the end face 3a of { HEAD ~ the first outlet pipe } 3 thereby ensuring { TAIL ~ the prevention } of leakage of the exhaust gas
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH