The guide vane structure 21 is pushed to a large extent into {HEAD ~ the die plate} 23 and is therefore in {TAIL ~ its blocking position} which reduces the effective inlet flow cross section 
The guide vane structure 21 is pushed to a large extent into { HEAD ~ the die plate } 23 and is therefore in { TAIL ~ its blocking position } which reduces the effective inlet flow cross section
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH