{HEAD ~ This web} of {TAIL ~ cardboard material} is guided, as illustrated, under the wedge clamping beams 3 and 4 and, therefore, spans the working surface 2 
of
{ HEAD ~ This web } of { TAIL ~ cardboard material } is guided , as illustrated , under the wedge clamping beams 3 and 4 and , therefore , spans the working surface 2
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