Mercurry 4 Variety Pack 3D Printer 0.2mm 0.3mm 0.4mm 0.5mm Extruder Brass Nozzle Print Head for MK8 1.75mm Makerbot

Description

The nozzle material use the national standard copper. Compare with the non-national standard copper, it have obvious differences,our nozzle's thermal conductive performance is better than the non-national standard of copper.