CNC Metal circular saw machine. 1 Air operated,hydraulic. 2 Has the circulating coolong system. 3 Burr free, no dusty CNC Metal circular saw machine1 Air ... blade life and the section quality.4 Burr free,no dusty. Technical parameter TypeYJ-275YJ-315YJ-350YJ-455Aluminum Cutting Machine The saw ... size250,275,300250,275,300,315300,315,350350,400,455 CNC Hydraulic Metal circular cold saw machine