... SGS About tungstenball Name of the productHigh-density tungsten alloy ball/tungsten carbide ballMaterialYG6 , YG6X , YG8 , YG8X ... HRC90-92Applicationsgrinding, bearings, hardness examine machine, aviation , grinding machine, head pressure, and so onPackingMedal Drum/Export Bag ... 9/ MOQ 5kgs for sintered blank; grinding tungsten carbide ball/polishing tungsten carbide ball /punching tungsten carbide ...