Nylon brush strips are most common to see on the sides of escalators. Running elevator steps and side walls have a direct gap. The nylon brush strips are installed near the gap, in order to prevent people's shoelaces, clothing, etc. from being involved in the elevator and causing safety accidents. At the same time, nylon brush strips are also widely used in automatic revolving doors, car door seals, all kinds of mechanical equipment seals, dust removal, and dust sweep.