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