This permits the transverse adjustment of the profile die block while {TAIL ~ the extrusion} is occurring to change the longitudinal location of where the profile joins the film, and the size of the profile base, as well as {HEAD ~ an indirect measurement} of the adjustment while the apparatus is operating 
This permits the transverse adjustment of the profile die block while { TAIL ~ the extrusion } is occurring to change the longitudinal location of where the profile joins the film , and the size of the profile base , as well as { HEAD ~ an indirect measurement } of the adjustment while the apparatus is operating
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL 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 HEAD OTH OTH OTH OTH OTH OTH OTH OTH