| 摘要 |
<p>A case forming panel and case structures corporating the same, the material being a laminate of internal and exterior liners on a flute providing medium of corrugated board having a flute pitch in depth greater than that of 'A' flute, the flutes to extend in use substantially vertically, and preferably having a flute pitch of about 54 mm, a flute depth of about 27 mm and a take up of about 1.54:1.</p> |
