Fig. 1
Geometric description of paper honeycomb sandwich tube filled with PE foam (a) honeycomb paperboard, (b) X-direction tube, (c) Y-direction tube, (d) filled tube.
Fig. 1 | Scientific Reports
Geometric description of paper honeycomb sandwich tube filled with PE foam (a) honeycomb paperboard, (b) X-direction tube, (c) Y-direction tube, (d) filled tube.
