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Cap improved design / Cap improved design

Cap improved design

The common caps on market is too tight, often because
slope and difficult to open, the caps on skid bump into a
vein designing towa-rd, and increasing the texture and
sense of direction, thus concav-econvex
feeling greatly increases the friction
convenient open.

Design

Jiangxi University of Finance and Economics

Jiangxi University of Finance and Economics
Nan chang, China

Yonghuang Zeng Xingyu Chen Jianqiang Chen Jiao LI