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Normally already dry and remain in the bevel paint it is very hard to clean .We use balloon theory and combine with color box ,add some water make it expand ,come into a cambered surface , convenient to clean .After clean ,we pour water out ,color box will come back to put paint groove.
South China Agricultural University
Guangzhou in China, China
South China Agricultural University
Guangzhou in China, China
Futong/Hu
South China Agricultural University
Guangzhou in China, China
Yanglong/Wang
South China Agricultural University
Guangzhou in China, China
Haihua/Liang
South China Agricultural University
Guangzhou in China, China
Zhenlu/Chen