{HEAD ~ The composite pre mix} is metered by the curved plate section, compacted by {TAIL ~ the inclined plate section} and maintained compacted by the flat plate section 
{ HEAD ~ The composite pre mix } is metered by the curved plate section , compacted by { TAIL ~ the inclined plate section } and maintained compacted by the flat plate section
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH