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Blue High Temperature PTFE Tube 1.9mm ID for 1.75mm Filament Ender 3 (1 meter) - Smith3D Malaysia
PTFE Tube High Temperature Pressure Heat Shrink Tube Extrusion Machine Hc276 Material - China Twin Screw Extruder, PTFE Rod Making Line | Made-in-China.com
Tough Tube - 1.9mm ID/4.0mm OD - High Temp, Smooth Feeding, Tighter Tolerance - PTFE Tubing - TH3D Studio LLC