Materials: Abrasives:aluminium oxide Bond:resin over resin Cloth:X-weight blending cloth or X-weight full cotton cloth Application: Grinding for wood and generel metal by machine.Suitable for narrow sand belt and sanding disc. 粒度Grits： 24-36-40-50-60-80-100-120-150-180-220-240-280-320-400 卷状最大宽度Max Width for roll：1400mm 卷状最小宽度Min Width for roll：25mm