GNA machines meet the ever increasing demands of a market in constant search of innovative solutions. The industrial packaging is in fact an element that can influence in a decisive way the image and competitiveness of a company. If until a short time ago purchases privileged the content, today the choice of the final consumer is also conditioned by the wrapping and by its ecosustainability. For this reason GNA continuously develops technologies that support the sustainability of materials and, at the same time, preserve the package contents. In this regard, both the new lines for the filling and closure of clamshell trays mod. CL40 and RL40 and other GNA solutions meet the demands of the large-scale retail buyers that push toward the use of biodegradable containers.