Several kinds of corrugated boards intersecting in different angles were studied to see if the four - sheet corrugated board can replace the five - sheet corrugated board in different circumstances.

• 节省了夹芯纸的用量，降低了瓦楞纸板的成本，而且强度高，对制作成品纸箱、纸盒提供了高强度的优良新型结构。