tungsten electrode 1.material W1 2.Standard: GB4187-84 ... 5.Length:50~600mm Description GradeW ContentDensity SpecificationApplicationPure tungsten bars W-1≥99.95≥19.312*12* ... CProcessing methods :firing,forging,rolling,grinding castingUses:suitable for processing ion implantation partsproducing electric light source parts and ... and typing needlesElectrode of WTh20, WCe20, Pure tungsten for TIG welding