chainsaw CS7210 Displacement: 72cc Two cycle : gasoline 25: oil1 Fuel tank volume:770ml Carburettor: pump-film type Power: 3.9kw/9500rpm Max engine speed with cutting attachement: 10000rpm Max engine speed at idling: 2800rpm±100 oil feeding system: automactic pump with adjuster saw chain pitch:3"/8" bar size: 20"22"24"28" Our factory Assemble line Factory strength Exhibition Outdoor show