{HEAD ~ The slide} is of {TAIL ~ sheet metal}, with opposite slide sides that are bent around edges of a strip shaped bracket that extends vertically 
is of
{ HEAD ~ The slide } is of { TAIL ~ sheet metal } , with opposite slide sides that are bent around edges of a strip shaped bracket that extends vertically
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH