The tubes and flanges are sized so that the tubes are squeezed as they pass through the plate holes, assuring {HEAD ~ good thermal contact} between {TAIL ~ the tubes} and the plates 
The tubes and flanges are sized so that the tubes are squeezed as they pass through the plate holes , assuring { HEAD ~ good thermal contact } between { TAIL ~ the tubes } and the plates
OTH 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 REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH