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Ordinary needles are of little size and barely catch sight. When falling onto the ground, they are always hard to be discovered and causing waste or even hurting. However, EASY-NOTED NEEDLE can easily be differentiated by its colored pinhole side, which effectively avoids the hurting and could be found quickly.


Zhongkai University of Agriculture

Zhongkai University of Agriculture
guangzhou, China

QingXiu Chen,
Zhongkai University of Agriculture and Engineering

Lingying Huang

Yanwen Zhou

Jiahui Ouyang