... precision, good surface diameter : 0.5mm--50.8mm About us Brand NamePlace of OriginStandardxinxinShan dong China ... of the productHigh-density tungsten alloy ball/tungsten carbide ballMaterialYG6 , YG6X , YG8 , YG8X , YG10 tungsten carbide Size0.5- ... traning export sales person; 5/ skilled in tungsten carbide sell; 6/ could issue the C/ ... sintered blank; 0.5mm-50.8mm tungsten alloy ball /strong anti-rust ...