A process for bonding several layers of plastic film, particularly plastic bags, into a block, where it is supposed to be possible to remove the plastic films or plastic bags form the block individually; the plastic films or plastic bags are bonded together in an edge strip by means of ultrasonic welding.

 
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< Welding device

< Method and apparatus for ultrasonically stomping slider end stops on zipper

> Conveyor belt modules with embedded rollers retained in the modules and associated method

> Ultrasonic welding method for the manufacture of a polishing pad comprising an optically transmissive region
~ 00250