... material: PVC board, Aluminium board3.Used on machine to cleaning, such as glass, metal surface etc.4.Easy to ... clean and excellent cleaning effect. ModelBristleBoardDisc DiameterFunction9SPig/horse hair,Nylon, PP,Fur,SisalPVC ... Aluminium930mmPolishing,Cleaning16BPig/horse hair,Nylon, PP,Fur,SisalPVC, Aluminium1024mmPolishing,Cleaning industrial disc cleaning brush