Sprite Extruder Heating Block Kit Titanium Heatbreak Plated Copper Nozzle Heated Block Hotend Pro Kit Compatible with Ender-3 S1 3D Printer. Titanium-Copper Construction: The 300℃ high temperature heat block kit's thermal break is crafted from titanium alloy to minimize upward heat transfer from the heating block, while the copper plating enhances downward heat conduction, striking an optimal balance for efficient printing.
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