... of W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe, some tungsten alloy is added with Co,Mo,Cr, etc ... , Tungsten Sinkers, tungsten alloy counterweights for golf and tungsten alloy dart parts spheres, cubes, and projectile shapes 3, High-temperature die, Electroheat , brass and copper, Tooling ... , military, oil logging, electrical appliance, medical, etc. DIAweight(g) TOL1.50.03±0.01mm 2.00.0753.00.254.00.65 ...