... , sheet, rods(electrode),wire, crucible, ring,boat, funnel,etc High density Tungsten based alloyTungsten Alloy Density: (17~18.5) W95NiFe:18Tungsten Alloy ... 60), and formaterials of armor piercing bullets and mould, etc.Tungsten copper alloyGrade: W80Cu20, W75Cu25, W90Cu10 W92.5NiFe W95Ni3Fe 2 W92Ni5Cu3 ...