一类是实用型的，如笔筒、笔挂、手杖、枕头、花架等；
One is practical, such as pen, pen hanging, cane, pillows, flower racks, etc.
由于采用上述结构，所以在中性笔在挂笔时，笔尖始终向下，能防止中性笔芯墨溢出。
By using the structure, the pen point points downward all the time when the gel ink pen is hung, thereby preventing the ink in the gel ink pen from flowing out.
由于采用上述结构，所以在中性笔在挂笔时，笔尖始终向下，能防止中性笔芯墨溢出。
By using the structure, the pen point points downward all the time when the gel ink pen is hung, thereby preventing the ink in the gel ink pen from flowing out.
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