paper honeycomb core plus 2 skins of kraft paper,often used as support/ box wall material 1) hexagonal hollow cell diameter 6mm, skin paper density 500g/m2, panel weight 1.13kg/m2.2) customization: thickness can be 15, 20, 25, 30, 35, 40, 45, 50mm, to 50mm thick.3) customization: skin paper density can be 750g/m2. paper honeycomb panel