The fiber aggregate 1, wherein the fibers have an average length in {HEAD ~ a range} from 2 to {TAIL ~ 10 millimeters} 
The fiber aggregate 1 , wherein the fibers have an average length in { HEAD ~ a range } from 2 to { TAIL ~ 10 millimeters }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL