... improvement of brushes, which to prevent sparseness, shedding, drop off.Brush bristle uses nylon yarn with characteristics like high flexibility, strong ... more than 12μm , the hardness ( HW )> 8 °Product standard Ends styleAluminum, plasticEscalator angle6°,12°,30°,35°Bristle shapeStraight bristle, curved ... ,OITS,Hitachi, Xunda,Toshiba,Suzuki, Canny, Kone escalator parts safety brush