... )Thickness:0.8mm High wearing resistant aluminium oxide fiber disc GrainGrit FeatureApplicationAP16~P120Closed coated, fiber ... oxide (A), zirconium oxide (ZA) silicon carbide (SIC)A is widely used for grinding wood, plastic, rubber, metalZA is widely used for polishing ... stainless steel, metalSIC: polishing stone, marble, building materials, hand materials ...