Use the needy style to open a soft model, use a soft mold to roll a wax heart, use the jewelry made of wax to leave a concave shape with gypsum, heated the gypsum mold to melt the gypsum mold into injection Metal, crushed gypsum removed the jewelry, trimmed and polished and polished.
Use the needy style to open a soft model, use a soft mold to roll a wax heart, use the jewelry made of wax to leave a concave shape with gypsum, heated the gypsum mold to melt the gypsum mold into injection Metal, crushed gypsum removed the jewelry, trimmed and polished and polished.