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The formula bag has thefunction of rain waterand sun ,
and it canliberation of hands for a buys workplace fresh
people,combined with the umbrella .the briefcase on
both sides of a supporting rod can shrink ,rain shielding
layer can be directly along each side of the pulleyon the
support rod is pulled to the overhead . And briefcase provide
more convenience for the life.
Tatung University
Taipei, Taiwan
Jing Cheng,
Tatung University