The aforesaid raw material can be used as such or after diluted with {TAIL ~ water} to {HEAD ~ a desired concentration} 
The aforesaid raw material can be used as such or after diluted with { TAIL ~ water } to { HEAD ~ a desired concentration }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD