1. According to the requirements of jewelry design, make a wax pattern with the same shape as jewelry with special wax material, and fix the made wax pattern on a resin rod to form a whole.

2. Put the wax pattern tree into a high-temperature oven to melt the wax pattern, leaving only a cavity, and put the dewaxed wax pattern tree into a sintering furnace for high-temperature sintering to make the resin rod hard and resistant to high temperature.

3. Put the sintered wax pattern tree into molten metal or alloy, and pour the metal or alloy into the cavity of the wax pattern tree by pouring.

4. After the metal or alloy is cooled and solidified, take out the resin rod with a tool to separate the jewelry product from the resin rod.