Materials: Abrasives: aluminium oxide or silicon carbide Bond:resin over resin Cloth:strong fiber Application: They can be washed by water when they are dirty,and continue to be used after drying.Being coated with abrasive materials on each side,both sides of the screens can be used.It is not only suitable for sanding plaster and wall surface, but also for sanding rusty spots of metal materials and making grinding and polishing treatment. 粒度Grits： 60-80-100-120-150-180-220-240-280-320-400-600 卷状最大宽度Max Width for roll：800mm 卷状最小宽度Min Width for roll：25mm