Further, a fiber or {HEAD ~ a powder} of e.g. {TAIL ~ carbon fiber}, carbon whisker or graphite can also be preferably used, so long as its specific surface area is from 200 to 3500 m2/g 
Further , a fiber or { HEAD ~ a powder } of e.g. { TAIL ~ carbon fiber } , carbon whisker or graphite can also be preferably used , so long as its specific surface area is from 200 to 3500 m2 / g
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH 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