Made by 3M 577F Zirconium oxide Sanding Rolls. Non alloy steel: common structure steel, free cutting steel, heat treated steel, carbon tool steel etc. 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.
TOPBRAS ABRASIVOS VINHEDO Abrasivos de Alta Performance Experiência, Competência e Qualidade