Feature: 1. Premium Material: Built with high-hardness steel, it becomes more wear-resistant after heat treatment, and it can print more filaments, even the high-hardness filaments. 2. High Temperature Resistance: Up to 450°C high temperature resistance ensure fast heating of the high-temperature filaments and continuous printing, and meet more printing needs. 3. Corrosion Resistance for Longer Service Life: Advanced heat treatment process and better anti-oxidation are combinded to prolong the service life of the nozzle. 4. Extensive Compatibility: Not only suit FDM materials such as PLA, ABS, PETG, TPE, TPU, PC, etc., but also composite filaments with grinding additives such as carbon fiber, glass fiber, steel, wood, boron carbide, , phosphorescent pigments, etc. Compatible with a variety of Creality models, including CR-10 series, Ender-3 series and Ender-5 series. 5. What You Get: This hardened steel nozzle kit including 8pcs high quality nozzles, 0.25mm (1pc), 0.4mm (3pcs), 0.6mm (2pcs), 0.8mm (2pcs). Specification: Features: Premium Material: Built with high-hardness steel, it becomes more wear-resistant after heat treatment, and it can print more filaments, even the high-hardness filaments. High Temperature Resistance: Up to 450°C high temperature resistance ensure fast heating of the high-temperature filaments and continuous printing, and meet more printing needs. Corrosion Resistance for Longer Service Life: Advanced heat treatment process and better anti-oxidation are combinded to prolong the service life of the nozzle. Smooth Inner Wall&Seamless Junction: With the Ra