Graphitized Multiwalled Carbon Nanotubes, 99.9% [COOH Functionalized] (OD: 30-50 nm, ID: 5-12 nm, Length: 10-20 um) are used (1) additives in polymers; (2) catalysts; (3) electron field emitters for cathode ray lighting elements; (4) flat panel display; (5) gas-discharge tubes in telecom networks; (6) electromagnetic-wave absorption and shielding; (7) energy conversion.