The pencil case is a box used by contemporary students to store stationery, which can hold pens, pencils, rulers, erasers and other stationery. Texture is a lot, generally wood, iron, plastic products, different shapes, mostly cuboid shape.
The pencil case itself has not apply for a patent, and it is evolved from the original tool storage means (such as rice cylinder, toolbox, portfolio), etc. It is a natural evolution tool of human behavior habits. If you http://www.hezehuaxing.com/box/storage-box/
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