According to Baidu Encyclopedia, Kitchen King is the registered trademark of Zhejiang Kitchen King Cookware Co., Ltd. and was awarded the title of "Zhejiang Famous Brand Product". Health-care selenium iron pots with national invention patents, non-stick Chinese medical stone pots, primary iron ore cast iron pots and other series of health-care cookware are all hand-cast alloy cookware industry code 1, so they can be classified as middle and high grade.