Method for producing of panels for e.g. ceiling coverings, involves providing longitudinal strips on respective upper and lower core layer in protruding manner

摘要

The method involves providing locking strips (11,12) on longitudinal sides (10) of an upper core layer (4) and a lower core layer (5) respectively. A cover layer (2) is provided at upper side (3) of upper core layer. A longitudinal strip (8) is provided on upper core layer such that longitudinal strip is protruded below the cover layer. A longitudinal strip (9) is provided on lower core layer such that longitudinal strip is protruded below upper core layer. An independent claim is included for panel.