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tubular casing / tubular casing

tubular casing
tubular casing

For existing tubular casing has difficulty in writing the contents occur in the end. If he executed
squeeze the contents of the contents come out anymore, squeeze, or using your hands to pray,
because the case ohryeoseo Bay. Itgekkeum to write the contents in the case without the power
saw why invent.
It is not out of the content anymore, open to cross the buttons on the side, so you can more
easily and safely made without the power to write the contents in the case. In addition, a more
economical method to write the contents to the end, can benefit the environment.


Hyupsung University

Hyupsung University
Incheon, South Korea

kim jooyoung,
Hyupsung University