Made of professional high carbon steel. The wok is double oxidized and nitrided, as well as three times of high temperature melting, polishing and refining, ensuring excellent durability and corrosion resistance.Uncoated and 100% free of toxic chemicals like PFOA and PFOS. Four times harder than a regular iron, it can be used with any scraper and cleaning toolForged with exquisite spinning process, the inner bottom and surface are smooth and shiny, not easy to stick, and use less oil when cooking. Quick and even heating,Detachable design for easy oven use and storage. Hanging loops are used for hanging storage and easy drying.Easy to clean. Cleans quickly, mouth-wateringly easy, and saves time and water.Specification:Usage: General purpose of gas and induction cookerMaterial: cast iron wokType: UncoatedDiameter:32cmPackage includes: 1 wok + 1 lidNote:In order to ensure the non-stick characteristics, please heat for 10-30 seconds before use, and then heat for 10-30 seconds after pouring in the oil; (heating time is adjusted according to the specific situation);Please keep the wok dry after cleaning (to avoid rust);conducts heat quickly and evenly, and the bottom of the pot is not deformed when heated for a long time, and is not afraid of scratching.