... improvement of brushes, which to prevent sparseness, shedding, drop off.Brush bristle uses nylon yarn with characteristics like high flexibility, strong ... , while with characteristics like inflaming retarding, static-free, No radiation, non-toxicity, low smoke, low calorie.The base is aluminum unit ... ,OITS,Hitachi, Xunda,Toshiba,Suzuki, Canny, Kone escalator parts safety brush