{HEAD ~ engage claws} continuously formed with {TAIL ~ said further arcuate portions} respectively and matched to the engage grooves of the elongated mating member, respectively, and matched to the engage grooves of the elongated mating member, respectively 
{ HEAD ~ engage claws } continuously formed with { TAIL ~ said further arcuate portions } respectively and matched to the engage grooves of the elongated mating member , respectively , and matched to the engage grooves of the elongated mating member , respectively
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL 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