| 摘要 |
<p>A packing box includes a main body, an opening formed on one surface of the main body, left and right flaps extended from the left and right edges of the opening so as to cover the opening, a rear flap extended from the rear edge of the opening so as to be folded to the upper surfaces of the left and right flaps, an insertion flap extended from the front end of the rear flap so as to be inserted into an insertion hole, locking flaps extended from both sides of the insertion flap so as to maintain a closed state of the rear flap and unfolded to be supported by the left and right flaps after insertion of the locking flaps into the insertion hole, and fracture guide cutting lines formed at folded parts of the left and right flaps.</p> |
