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When you hold the knife should be kept below my waist than
the line. Because of the risk of greater access for children to
touch and easy. To solve this problem, The handle was designed
as a password . When you release the handle is the key to keep
the knife. Pick out the blade with the handle , the knife can be used .
Myongji University
Gyeonggi-do, South Korea
dareum nam,
Myongji University
