{HEAD ~ The mean particle size} of {TAIL ~ carbon black} is preferably 0.01 to 0.1 μm also for formation of the favorable electroconductive network 
of
{ HEAD ~ The mean particle size } of { TAIL ~ carbon black } is preferably 0.01 to 0.1 μm also for formation of the favorable electroconductive network
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH