The projecting parts include {HEAD ~ four parts} 127 at {TAIL ~ the four corners} of the rectangular flange, and two vertically elongated projecting parts 128 at the laterally opposite sides of the flange 
at
The projecting parts include { HEAD ~ four parts } 127 at { TAIL ~ the four corners } of the rectangular flange , and two vertically elongated projecting parts 128 at the laterally opposite sides of the flange
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL 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