A process 1, wherein {HEAD ~ the powder} of a synthetic resin comprises {TAIL ~ fine particles} having a spherical shape 
comprises
A process 1 , wherein { HEAD ~ the powder } of a synthetic resin comprises { TAIL ~ fine particles } having a spherical shape
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH