1-GXZ81 abrasive 2-Cotton backing 3-zirconia oxide 4-making flap wheels & ... cast iron, etc. best endurance poly-cotton0.83x100m GXZ81 power abrasive clothRaw material: X heavy cloth backing, modifying phenolic resin, Zirconia ... /100mwe have 2 cloth processing lines, 2 abrasive cloth manufacturing lines, 3 sets of abrasive flexible cloth equipments. the annual capacity of ...