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Control the time / Energy-saving design

Control the time
Control the time

It is different from traditional mosquito-repellent incense,it has accurate time-phased,How long you want it to burn, It will be extinguished at that time,more economic and convenient .

University

Zhengzhou University of Light Indus

Zhengzhou University of Light Indus
Zhengzhou, China

Design

chen, jie

chen, jie
Zhengzhou, China

jie,chen