| 摘要 |
A heat sealing station for laminating superimposed elongate webs of material including an upper heat seal unit and a lower pressure platen in vertical registry, the lower pressure platen having vertical reciprocal motion below the web and the upper heat seal unit having vertical reciprocal motion above the web, the upper heat seal unit further being characterized by resilient mounting construction to cooperate with and to absorb the forces generated by operation of the lower pressure platen.
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