[Cast Iron, one of the local industries in Kawaguchi City, Saitama Prefecture. The KAWAGUCHI i-mono is said to be difficult with casting products, and is said to be "light and strength." The thickness of the sides is about 0.08 inch (2 mm) from Kawaguchi’s technique. Because it is made of strong and sticky ductile cast iron with a load of 16.15 KN and will not break even if deformed. The material used for KAWAGUCHI i-mono. Maintains a thin walk. Therefore, the temperature rises very quickly. The all-cast KAWAGUCHI i-mono can also be used in the oven with the lid left on (up to 76°F (280°C)); Do not use in the microwave oven; Do not use with fried food in an induction cooker; SG Mark certified product.