▎ 摘　　要

NOVELTY - Preparation of composite material, involves (i) stranding at least two strands of composite metal wires to obtain a stranded wire, continuously extruding the stranded wire. The composite metal wire contains a metal base line and a graphene layer coated on the surface of the metal base. USE - Preparation of metal based composite material ADVANTAGE - The metal-based composite material has good mechanical property; and can be prepared as ultra-long product, and can improve the density of the material; and provides the metal base material with better mechanical property of the needed cross section shape, and overcomes the problem that the current powder metallurgy product has low density, and the forming process is not continuous.