▎ 摘　　要

NOVELTY - Universal circular saw comprises 93-98 pts. wt. low melting point powder, 1.5-2.3 pts. wt. graphene hard alloy composite material, and 1.0-1.5 pts. wt. diamond powder. The low melting point powder comprises iron powder, copper powder, tin powder, nickel powder, iron copper alloy powder, and carbon powder. USE - Universal circular saw. ADVANTAGE - The material improves wear resistance of hard alloy type saw blade, and prolongs service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the universal circular saw comprising mixing raw materials, cold press molding, deforming, sintering at 750-850° C for 4-6 hours, cooling, checking semi-finished product, spraying paint, leveling, grinding, cutting, and conveying to warehouse.