Preferably the fibers are cracked whereby they exhibit highly reflective surfaces especially useful in the reflection of {HEAD ~ heat} produced by {TAIL ~ a fire} 
produced by
Preferably the fibers are cracked whereby they exhibit highly reflective surfaces especially useful in the reflection of { HEAD ~ heat } produced by { TAIL ~ a fire }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL