Typically, the roving is connected to {HEAD ~ a first structural component} by threading {TAIL ~ the roving} through a borehole drilled through the component and backfilling the borehole with epoxy, polyurethane, or grout 
Typically , the roving is connected to { HEAD ~ a first structural component } by threading { TAIL ~ the roving } through a borehole drilled through the component and backfilling the borehole with epoxy , polyurethane , or grout
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD 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