Tag: Brushes
What Do the Brushes on the Escalator Do?
We frequently use escalators in shopping stores, airports, subways or similar places. And the brushes on both sides of the steps definitely caught our attention. So what do these brushes…
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We frequently use escalators in shopping stores, airports, subways or similar places. And the brushes on both sides of the steps definitely caught our attention. So what do these brushes…