| 摘要 |
PROBLEM TO BE SOLVED: To stack up a plurality of containers of different sizes with their contents being stored in them, stack them up in a space saving manner and in vacant state, and simply and easily carry out stacking up and overlapping works. SOLUTION: A first container 11 is classified with color at a midway part of a pair of long sidewalls 11a. A second container 21 formed into double size of the first container 11 is classified with color at a midway part of a pair of short sidewall 21b. The first container 11 and the second container 21 having contents stored therein are stacked up in such a way that the short side wall 11a of the first container 11 and the long side wall 21a of the second container 21 may show different colors. The first container 11 and the second container 21 are stacked up under their vacant state in such a way that the short side wall 11a of the first container 11 and the long sidewall 21a of the second container 21 may become the same color to each other and overlapped to each other. |
