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The design on the basis of the existing nails, making scale information such as aslength and diameter of the nail. It solves the users ( such as operaters )control the actual needs of nail length effectively when they drive in a nail. It also makes it easier for users to buy and identifying the required length of the nail.


Huang Tianyang

Huang Tianyang
zhanjiang, China

Tianyang Huang,
Guangdong Ocean University