providing {HEAD ~ a first roller} adapted to receive {TAIL ~ the additive material} within a plurality of spaced apart pockets located on its roll face 
adapted to receive
providing { HEAD ~ a first roller } adapted to receive { TAIL ~ the additive material } within a plurality of spaced apart pockets located on its roll face
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH