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Used to help street sanitation workers. As a high-risk type of work, sanitation workers are more numerous in developing countries. This barrier can absorb sunlight during the day and shine at night to warn others. The folding of the roadblock is conducive to storage, and after unfolding, it can be used as a chair for sanitation workers to rest. Reduce the risk of sanitation workers at work and improve work efficiency.
of Science and Technology