... working meterial:iron,steel,aluminum,sheets... 2.small cutting gap,no resedua 3certificate:CE,FDA plasma cutting machine 80A RJ1530 (RJ1313 ... , RJ1325 ) Apply to :the cutting of iron, aluminum, galvanized ... XYZ axis round rail, moving smoothly, with high accuracy. (option: square rail) Excellent performance on cutting 3D illuminated letters ...