4. Tungsten powder major oxidation-reduction method: Use tungsten powder to variety a Unique tungsten oxide by way of partial oxidation below a certain temperature, oxidation time, and air atmosphere. This tungsten oxide has a posh composition, high-quality particle sizing, and huge specific area space. 4 g/cm3, with Practically no fluidity. https://zanderjudmt.spintheblog.com/29267184/modtp-cas-no-72030-25-2-no-further-a-mystery