The filter 11 is composed of a wire mesh structure and is formed in {HEAD ~ a short column shape} provided with {TAIL ~ a central through hole} 12 
provided with
The filter 11 is composed of a wire mesh structure and is formed in { HEAD ~ a short column shape } provided with { TAIL ~ a central through hole } 12
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH