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bowl / Depression pushpin

bowl
bowl

The drawing pins seem nothing special. But some details of their design are more friendly. The side attached to the wall is a flat while the side against hand is a camber concave, which is convenient for use.

University

Jiangnan University

Jiangnan University
Wuxi, China

Design

Jiangnan University

Jiangnan University
Wuxi, China

Song yijun Ji nan Ren jie