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now we promote the use of replaceable
toothbrush hesd, but replaced the toohbrush
head and how to deal with each of us three
months to replace a toothbrush, according
to the six billon people worldwide, the
average daily discarded toothbrush hesd
is 66,660,000,resulting in serious
environmental pollution.
Jiangxi University of Finance and Economics
Nanchang, China
Jiangxi University of Finance and Economics
Nanchang, China
Jiangxi University of Finance and Economics
Nanchang, China
Yan Chen
HongXing Xiang
GuangLei Huang
Dong Yang