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In the age of high-frequency earthquake, people attach more importance to the toilet problem of disaster area. Portable nightstool is simple and designed for that area; there are teeth in the bottom of it. In disaster area, if you want to go to the toilet, you just need to find a bucket, putting the portable nightstool on it and install degradable plastic bag in the bucket, therefore, stool can be handled centralized, which is convenient and clean.
Simin Gan Suhao Di Xin Liu Wenmei Zhang