In the literal sense, this term refers to ceramics with stamped designs, and there are many examples in both East and West that meet this definition. However, this term was mainly used to refer to the beaten pottery vessels made in various regions of China during the High Period, and it is common to refer to them when talking about sealed pottery today. In China, many pieces of ash-glazed and ash ceramics from the Shang dynasty already had a pattern of beaten decoration, which was initially added to adjust the shape of the vessel, but gradually took on a stronger character as a pattern. Among them, the grayish-white wares produced in the Zhejiang and Jiangsu areas along the Yangtze River from the end of the Zhou dynasty to the beginning of the Han dynasty are marked with fine markings such as square, diamond, and feather patterns, and are regarded as representative of sealed wares.
