The second consists in putting a protective plate into place on the surface of the sheet that faces towards the pump chamber, which protective plate is made of {TAIL ~ a high grade material} that presents good resistance to {HEAD ~ corrosion} 
The second consists in putting a protective plate into place on the surface of the sheet that faces towards the pump chamber , which protective plate is made of { TAIL ~ a high grade material } that presents good resistance to { HEAD ~ corrosion }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD