The counterholder which is designed as a ball may be penetrated by a plurality of {HEAD ~ channels} in a star shape to enable {TAIL ~ fuel} to flow through when the valve is opened 
The counterholder which is designed as a ball may be penetrated by a plurality of { HEAD ~ channels } in a star shape to enable { TAIL ~ fuel } to flow through when the valve is opened
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH