| 摘要 |
<p>The cardboard shows great compression strength and effectively absorbs impacts, and at the Same time is of small thickness. The packagings made from it have reduced overall dimensions and furthermore they protect its content from its transport and loading/unloading. The two-layer corrugated cardboard includes an upper (102) and lower (106) external layer and corrugated intermediate layers (101, 104) sandwiched between the external layers (102, 106). The invention also relates to a method and a device for the manufacture of the two-layer corrugated cardboard. 21 claims, 4 figures</p> |
