The shroud is attached to a head plate, and is designed to both enclose the solid particles suspended as a result of the removal operation, and to direct the suspended material to {HEAD ~ the mouth} of {TAIL ~ the suction pipe} 
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The shroud is attached to a head plate , and is designed to both enclose the solid particles suspended as a result of the removal operation , and to direct the suspended material to { HEAD ~ the mouth } of { TAIL ~ the suction pipe }
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 OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL