Die-cast aluminum parts mainly focus on surface oxidation removal, edge burr smoothing, surface roughening, matte finish, flattening, and rust removal treatment. Die-cast aluminum parts can be manufactured into aluminum die-cast auto parts, aluminum die-cast engine pipe fittings, aluminum die-cast engine cylinders, aluminum die-cast gasoline engine cylinder heads, aluminum die-cast valve rockers, aluminum die-cast valve supports, aluminum die-cast electrical accessories, aluminum die-cast motor end caps, aluminum die-cast casings, aluminum die-cast pump casings, aluminum die-cast architectural fittings, aluminum die-cast decorative fittings, aluminum die-cast railing fittings, and aluminum die-cast aluminum wheels, among other components.