A fluid control system for controlling {HEAD ~ the flow} of nitrous oxide and {TAIL ~ oxygen} is attached to the mounting surface structure 
of
A fluid control system for controlling { HEAD ~ the flow } of nitrous oxide and { TAIL ~ oxygen } is attached to the mounting surface structure
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH