Multi-walled nanotubes Purity: > 95% Outside diameter: 10-20 nm Inside diameter: 5-10 nm Length: 0.5-2 um SSA: 180-230 m2/g Color: black Bulk density: ~0.17 g/cm3True density: ~2.1 g/cm3이하 부가세별도25g ₩364,000100g ₩987,000