| 摘要 |
PURPOSE: A packing material for a corrugated cardboard is provided to completely execute a locking process and to improve productivity by removing a bonding process. CONSTITUTION: A packing material for a corrugated cardboard includes a rib plate, a rib(100), a side plate in which an upper combining aperture and a lower combining aperture are formed, a first upper barrier groove(121a), a first lower barrier groove(121b), a second upper barrier groove(123a), a second lower barrier groove(123b). It is inserted into the upper combining projection board and the lower combining projection board projecting insertion. An upper insertion fitting hole(161a) and lower insertion fitting hole are formed.
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