{HEAD ~ This metal} 2×4 is formed from {TAIL ~ two asymmetrically bent triangular beams} 220 and 222 which have legs 221 and 223 extending from the apexes to form a flat surface 226 comparable to the 2 inch edges of a 2×4 wood stud into which fasteners may be driven to support other construction materials 
is formed from
{ HEAD ~ This metal } 2×4 is formed from { TAIL ~ two asymmetrically bent triangular beams } 220 and 222 which have legs 221 and 223 extending from the apexes to form a flat surface 226 comparable to the 2 inch edges of a 2×4 wood stud into which fasteners may be driven to support other construction materials
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH