▎ 摘　　要

NOVELTY - A graphene sheet (10) is obtained by stripping layer of layered structure of natural graphite. USE - Graphene sheet used as raw material for manufacturing carbon nanotube (claimed). ADVANTAGE - The graphene sheet enables to manufacture carbon nanotube with larger diameter and which does not affect human health, easily. DESCRIPTION OF DRAWING(S) - The drawing shows the perspective view of the carbon nanotube. Graphene sheet (10)