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When you use a stapler, if paper is large in quantity, you have to use a larger tapler (longer a vertical length of lead) be cause the more paper is large in quantity, And so to solve this prob-lem, I suggest a stapler which is adjustable to band the lead to fit the line.
Kyungsung University
Busan, South Korea
Kyungsung University
Busan, South Korea
Kyungsung University
Busan, South Korea