... , rods(electrode),wire, crucible, ring,boat, funnel,etc High density Tungsten based alloyTungsten Alloy Density: (17~18.5) W95NiFe:18Tungsten Alloy ... : For making rotors of aircraft wings, shileding materias for radioactive isotope (Cobalt 60), and formaterials of armor piercing bullets and mould, etc.Tungsten copper ...