▎ 摘　　要

NOVELTY - A copper-based composite material comprises 55-69 %mass copper, 30-44 %mass zinc, 0.01-5 %mass titanium, 0.01-10 %mass graphene and remaining inevitable impurities. USE - Copper-based composite material. ADVANTAGE - The copper-based composite material has high strength, excellent corrosion resistance, wear resistance, and no decrease in electrical conductivity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: preparation of copper-based composite material; and #powder roller extrusion molding apparatus.