挪威采购需求：散热器制造商，散热器工厂，定制散热器，CPU散热器，LED散热器，PCBA散热器

I'm currently in the market for a round heat extruder featuring aluminum lamellas that are ultra-thin, designed with a central hole. This hole should accommodate a metal pole with a diameter ranging from 2 to 5 mm. My primary goal is to find a product that maximizes heat efficiency while maintaining a lightweight yet sturdy structure. If you have such a product or something similar in your inventory, I'd love to get more details. Specifically, I'm interested in the product specifications, any customization options available, and pricing information. Additionally, could you let me know about the lead time for production and delivery? Thank you!