| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: a cost is increased because the amount of material for use becomes large on ground that a middle plate made by conventional injection molding cannot make a molded article thin-walled due to a structure of a mold.SOLUTION: A middle plate for use in a cosmetic storage container is molded by vacuum molding. Thus, the amount of material for use can be reduced.SELECTED DRAWING: Figure 1 |
