When the profile plate containing the profile shaped extrusion apertures is mounted in the holder, the transverse distance between the fastener profile and the extruding film or sheet is varied, permitting {HEAD ~ the base} of {TAIL ~ the profile} to be varied 
When the profile plate containing the profile shaped extrusion apertures is mounted in the holder , the transverse distance between the fastener profile and the extruding film or sheet is varied , permitting { HEAD ~ the base } of { TAIL ~ the profile } to be varied
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 OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH