Heat Pipe Basics and Demonstration on How a Heat Pipe Works - YouTube
Thermal transfer product-Heat Pipe - JUNCHENG THERMAL manufacturing
Amazon.com: Flat Heat Pipe 1Pcs 3.5mm x 11mm x 50mm GPU CPU Backplate Copper Heatsink Pipe, to Cool Heat Sink Laptop PC Vram Ram as Thin Fanless Passive Thermal Cooling Tube from
Source Diameter 3mm straight copper heat pipe on m.alibaba.com