Materials: Abrasives:aluminium oxide Bond:resin over resin Cloth:J-weight twill blending cloth Application: Grinding for hardware,such as csting aluminium,part,watertap, carbonsteel,and also for outline of hardwood.Suitable for narrow belt,sanding disc. 粒度Grits：60-80-100-120-150-180-240-320-400 卷状最大宽度Max Width for roll：1400mm 卷状最小宽度Min Width for roll：50mm