sheet metal progressive stamping heat sinks 1)Progressive Die Stamping 2)Customized 3)High efficiency ... customer's design, welcome to send inquires.sheet metal progressive stamping heat sinks1. Provide in-house design 2. ... laser cutting, threading, welding , tapping, riveting, grindingSurface treatment:Hot galvanized, polishing, chrome/zinc/nickel plating, PVC coating, anodize, E-coating progressive ...