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Warning sign / Convenient warning sign

Warning sign
Warning sign

It is dangerous to place a warning sign on a highway 200 meters away. So
we designed a warning sign that can be placed just a few steps behind the
car to achieve the same warning effect. It only takes 30 seconds to complete
the placement.

University

KEYI COLLEGE OF ZHEJIANG SCI-TECH U

KEYI COLLEGE OF ZHEJIANG SCI-TECH U
NIVERSITY
Shaoxing, China

Yiquan Sun,
KEYI COLLEGE OF ZHEJIANG SCI-TECH U