The number of each type of preassembled top frame unit maintained in {HEAD ~ stock} ready for {TAIL ~ assembly} may be set in accordance with the demand for different range configurations  
The number of each type of preassembled top frame unit maintained in { HEAD ~ stock } ready for { TAIL ~ assembly } may be set in accordance with the demand for different range configurations
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH