Copper Alloy with High Thermal Conductivity High Flow for High Speed Printing: The thermal conductivity of copper alloy is as high as 330W/mk, ensuring that the nozzle is heated more evenly. The volume is twice as as ordinary nozzles, supporting high-speed printing speed of 600mm Uniform Nickel Plating, Smoother Extrusion:The nickel-plated layer on the surface greatly reduce the adhesion of filaments to the nozzle and smoother extrusion. x Applicable to most FDM materials such as PLA, ABS, , TPE, TPU, PC, etc., And , PEKK, PEI, PSU, PPSU and other high temperature filaments Hardened Steel Resists Corrosion for Service Life: Advanced heat treatment process and better are combined to prolong the service life of the nozzle Applicable to most FDM materials such as PLA, ABS, , TPE, TPU, PC, etc., and composite filaments with grinding additives such as carbon fiber, glass fiber, steel, wood, boron carbide, tungsten, pigments, etc. Premium Materials Handle High Temperature Filaments: fast heating of the high-temperature filaments and continuous printing x Copper alloy high temperature resistance up to 500, hardened steel high temperature resistance up to 450 Parts list: copper alloy 0.4mm x 2 pcs 0.6mm x 1 0.8mm x 1Hardened steel 0.4mm x 2 pcs 0.6mm x 1 Color: As Shown Material: Chromium zirconium copper+hard steel Package Contents: 2 x copper alloy 0.4mm 1 pcs x 0.6mm 1 x 0.8mm 2 x Hardened steel 0.4mm 1 pcs x 0.6mm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.