{HEAD ~ A fibrous filter element} for trapping {TAIL ~ diesel engine exhaust particulates} comprises a mass of coiled wire of flattened cross section compacted into a small passage gas pervious body 
for trapping
{ HEAD ~ A fibrous filter element } for trapping { TAIL ~ diesel engine exhaust particulates } comprises a mass of coiled wire of flattened cross section compacted into a small passage gas pervious body
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH