Sichuan. Jiangyou turtle-shaped iron pots are all made of new gray iron smelted from Sichuan local iron pot stone, which is different from common iron ingots in the market and obviously different from iron pots made of waste recycled iron. Turtle-shaped iron pot is forged from wrought iron, which is relatively difficult to melt, so the manufacturing cost is slightly higher. The turtle-patterned iron pot is soft and malleable. Although it is easy to deform, it has high toughness.