Such a clamping can be accomplished, for example, by deforming the first part 2 or by a corresponding spreading of deformable wall parts of the first part 2 or of {HEAD ~ corresponding parts} of {TAIL ~ the main closure} 
of
Such a clamping can be accomplished , for example , by deforming the first part 2 or by a corresponding spreading of deformable wall parts of the first part 2 or of { HEAD ~ corresponding parts } of { TAIL ~ the main closure }
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 TAIL