... Liner, Tube Inner PU Coating 1. Text: Polyurethane rollers are with high strength, compressive strength, abrasion resistance, ... Normal hardness is shore A 40 ~ 60) (2)Printing rollers: Including letterpress printing roller (Shore A20 ~ 30), offset printing ... , manual removal wheel, mechanical dedust roller, industrial casters, hot press rollers, trademark machine roller, rubber tire, PU wheel, paper ...