sheet metal progressive stamping heat sinks 1)Progressive Die Stamping 2)Customized 3)High efficiency ... 4)Competitive price We can provide various Heat Sinks as per customer's design, welcome to send inquires. ... , threading, welding , tapping, riveting, grindingSurface treatment:Hot galvanized, polishing, chrome/zinc/nickel plating, PVC coating, anodize, E-coating progressive stamping ...