In accordance with the present invention, however, an unequal pairing of {HEAD ~ a mineral casting module} with {TAIL ~ a cross arm} made of metal, together form a machine frame 
with
In accordance with the present invention , however , an unequal pairing of { HEAD ~ a mineral casting module } with { TAIL ~ a cross arm } made of metal , together form a machine frame
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH