... used to cut the asphalt surface, cement road surface, concrete goods and stone of municipal, construction, telecom, highway, ... , cooling water is sprayed to the blades to lubricate and cool the blades, which enhances the service life of ... the blades.Floor Saw1.ZP40 without bladeZP40 (gasoline engine, Honda ... blade 400mm blade 500mm blade 700mm blade Concrete Cutting Machine