... Sink,Short and thick copper heat pipe,2)High bay light heat sink,heat transfer, ... weight and high performance. 2,Copper column-shape heat pipe Aluminum LED heat sink,Bonded fins,Zipper fins and ... extruded finsFeature:heat pipe+copper base+aluminum fins 3,Many shapes and sizes ... SW,UG,etc) Http://www.addka.com Payment TermsL/C,D/P,T/T,WESTERN UNION,ETC.Price TermsFOB ...