comprises a poppet valve assembly for {HEAD ~ use} on a fuel tanker truck for loading fuel onto the truck or unloading fuel from the truck, most commonly into an underground storage tank at {TAIL ~ a service station} 
comprises a poppet valve assembly for { HEAD ~ use } on a fuel tanker truck for loading fuel onto the truck or unloading fuel from the truck , most commonly into an underground storage tank at { TAIL ~ a service station }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL