A solar heat collector made up of several metal plates, each bent to provide a first planar portion and {TAIL ~ a second planar portion} at substantially 90°, with a flanged hole through {HEAD ~ each first portion} 
A solar heat collector made up of several metal plates , each bent to provide a first planar portion and { TAIL ~ a second planar portion } at substantially 90 ° , with a flanged hole through { HEAD ~ each first portion }
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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD