1)Strong anti-wear resistance,Strong hardness 2)High precision, good surface diameter : 0.5mm--50.8mm About us Brand NamePlace of OriginStandardxinxinShan dong China ( mainland)ISO 9001:2000 ISO 9001:2008 SGS About tungstenball Name of the productHigh-density tungsten alloy ball/tungsten carbide ballMaterialYG6 , YG6X , YG8 , YG8X , YG10 tungsten carbide Size0.5-100mmGrade G10 - G100Hardness ...