D-Sub Zamak die casting housing connector shells with a smooth surface. Die casting is a kind of precision casting method which makes use of high pressure to force the metal to melt into a complex metal mold by high pressure. Zinc alloy has a low melting point that is easy to die cast a complex die casting component. In addition, die casting part can be done with different surface treatments. This D-Sub housing is done with Nickle plating that can pas 48H salt spray testing. And the surface without colors different, peeling, sand holes, and so on.