Sigma-Aldrich
石墨, powder, <20 μm, synthetic
Sigma-Aldrich
石墨, powder, <45 μm, ≥99.99% trace metals basis
Sigma-Aldrich
石墨, powder, <150 μm, 99.99% trace metals basis
Sigma-Aldrich
石墨, rod, L 150 mm, diam. 3 mm, low density, 99.995% trace metals basis
Sigma-Aldrich
石墨, rod, L 150 mm, diam. 6 mm, 99.995% trace metals basis
