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“One by One” brings a new usage pattern---Group use.It is a drawing pin that takes example of the Lego bricks’ joint.when using them,we only need to take the line of drawing pins instead of holding several numbers of pins in hand . Similarly, when we need to take them down, just connect them into a line.
School of design,Hunan University,C
Changsha, China
School of design,Hunan University,C
Changsha, China
