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After a comb had been used a period of time,the comb tooth would be coverd with oil dirt.It is really inconvenient to tackle it.
The clean comb is designed to deal with this problem.In normal times, the clean tool is hidden in the comb.When the comb tooth need to be cleaned, pull out of the tool and use the iron wire of it to scrape the oil dirt.After cleaning, push the tool back into the comb.
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Wuhan, Hubei Province, China