Two metal panels or paper Plastic combined perforating Flap in partial areas at the level of each panel.

摘要

The Folding Tabs extend towards the other panel through the Spaces between the panels.Each panel laslenguetas being arranged in an angle with each other and for extending tab that extends from the other panel and fasten the overlapping with other TabsTo form Links of Angled Connections. The spacing between the panels depends on the pierced area.