... , tungsten sheets, ect. Tungsten crucible: it is used for smelting of rare earth metals, heating elements of induction furnace, smelting of quartz, glass and ... : 1. Tungsten products: (1) Ammonium Tungsten(2) Pure tungsten products: tungsten powder, slab, bars, rolling plate, sheet, rods(electrode), wire, crucible, boat, funnel and other special ...