Zirconia Alumina 577F 40# 60# 80# Sanding Belt for Hard Metal 6 pieces 75*457mm

The rolls imported from USA, 3M 577F Zirconium oxide. Size: 75 457mm. Alloy steel: gate steel, heat-resistant steel and alloy steel, non magnetized steel, stainless steel(chromium, nickel chromium steel), corrosion-acid-hot resistant steel etc.