... Grid, Anodes, and parts of vacuum tubes. Hot working ... Purity :> =99.95%3. Characteristic:Melting Point: 2610°CBoiling Point:5560°CDensity: 10.2g/m3High quality, workability4. ... Certificate: ISO90025. Product Feature: High melting point, High-density, high temperature oxidation resistance, long ... -67.application:Grid, Anodes, and parts of vacuum tubes.Hot working mould, melting glassfiber ...