1)Strong anti-wear resistance,Strong hardness 2)High precision, good surface diameter : 0.5mm ... ball/tungsten carbide ballMaterialYG6 , YG6X , YG8 , YG8X , YG10 tungsten carbide Size0.5-100mmGrade G10 - G100Hardness HRC90-92Applicationsgrinding, bearings, hardness examine machine, aviation , grinding ... 9/ MOQ 5kgs for sintered blank; high density tungsten carbide ball /strong hardness tungsten carbide ...