can't read?
Tungsten, is a chemical element with symbol W and atomic number 74.
T 0183 (OTTO) Tungsten powder, ≤10μm, 99.99% Cas 7440-33-7 - used in other chemical compounds. T 0183 (OTTO) Tungsten powder, ≤10μm, 99.99% Cas 7440-33-7 - used in low-temperature superconducting circuits.