In operation, a workpiece is placed between the base and the platen, and {HEAD ~ a force} is applied to the workpiece by {TAIL ~ operation} of the bellows 
is applied by
In operation , a workpiece is placed between the base and the platen , and { HEAD ~ a force } is applied to the workpiece by { TAIL ~ operation } of the bellows
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH