Tungsten Nickel Iron rod tungsten heavy alloy bar rod WNIFe WNICu high purity polishing surface for industry ASTM B760 alloy forMetallizing, Electron-beam Spraying, sinteting or heating
Tungsten Nickel Iron rod tungsten heavy alloy bar rod WNIFe WNICU high purity polishing surface for industri ASTM B760 alloy for Metallizing, Electron-beam Spraying, sinteting utawa pemanasan