The nozzle has smooth incision,narrow-slit,small thermal deformation and easy. The pilot-electrode on the plasma-cutter is to assist arc-ignition.The shield-cup is used to protect the plasma-torch. Easy and flexible,easy replacement of old or damaged-parts,ensuring-optimum cutting quality and reliability. Component for durability.The nozzle and electrode are red-copper,which is resistant to high-temperature and wear and is. The swirl-rings and shield-cups are ceramic-material,which is heat-resistant,corrosion-resistant and highly-rigid.