heat pipe copper heat pipe groove copper heat pipe sintered copper heat pipe sintered powder copper heat pipe 1)Heatpipe material: Copper2)Heat pipe lengths: 80-500mm (other lengths available as request)3)Working fluid of heatpipe: Deionized water4)Heat pipe diameters for heat pipe: φ5-10mm (other diameters available as request)5)Wick structures for heatpipes: sintered powder ( groove, wire mesh ...