The die casting machine, die and alloy, the three on the basis of die castings, running through with the die casting process forms organically a whole and an effective system. Making the machines well to mate with dies, optimization of die casting construction, optimization of selecting die casting machine, optimization of die design and improving the flexibility of die casting process (operational point), thus all of these provide a secure guaranty for production. So to say the process conveys in the die, this has a profound intension.