NF V6-Zone Heat Break Copper & Aerospace Materials 3D Printer Nozzle Throat For 1.75mm E3D V6 HOTEND Heater Block
https://www.vogueparade.com/shopping/EN/200003782/1/1005003346391453/nf-v6-zone-heat-break-copper-and-aerospace-materials-3d-printer-nozzle-throat-for-175mm-e3d-v6-hotend-heater-block//