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