Pure Tungsten Crucible 1.Grade W-1 W-2 Purity 99.95% 2.Diameter:10- ... 650mm; height: 50-750mm Pure Tungsten CrucibleSpecification Grade and Size Material Density State Size Tungsten 99.95%19 ... refining.We supply tungsten wire, tungsten bar, tungsten plate, tungsten sheet, tungsten rod, tungsten electrode, tungsten fabricated parts, tungsten alloy, tungsten ...