1.Abrasive grain:aluminum oxide,silicon carbide,Zr aluminum oxide 2.Backing:cloth or paper 3.Shape:sheet, roll, belt Dry sanding paper 1) Backing cloth : soft cloth & hard cloth/ 100% polyester cloth& cotton/polyester cloth2) Grain : Aluminum oxide , Silicon Carbide , Zirconia . 3)Grit: P 24-36-40-50-60-80-100-120-150-180-220-240-280-320-400-6004) Size : Customize, Also for narrow, wide belts, ...