For example, {HEAD ~ the grid} may be produced with a 200 μm pore size, 80% open area, and {TAIL ~ 4 mm thickness} 
produced with
For example , { HEAD ~ the grid } may be produced with a 200 μm pore size , 80 % open area , and { TAIL ~ 4 mm thickness }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL