We sell Tungsten powder /Tungsten Oxide3(Tungsten Trioxide)//Tungsten Oxide2 Powder, Ammonium Paratungstate,tungsten carbide pow Specification for our Tungsten Powder,Tungsten Oxide3(Tungsten Trioxide)/Tungsten Oxide2,Ammonium Paratungstate,tungsten carbide powder 1,Density:19.35 g per cm3