Materials: Abrasives: aluminium oxide Bond:resin over resin Cloth: J-weight plain cotton cloth Application: Grinding for wood,vineware and general metal.It is used for hand. 粒度Grits： 24-36-40-60-80-100-120-150-180-220-240-280-320-400 页状Sheets:230×280mm 卷状最大宽度Max Width for roll：1400mm 卷状最小宽度Min Width for roll：25mm