1, pottery pots of the Han Dynasty are 1 cultural relics. According to the Classification Standard of Cultural Relics Collection (Ministry of Culture Order 200 1No. 19), cultural relics collection can be divided into precious cultural relics and general cultural relics. Precious cultural relics are classified into Grade I, Grade II and Grade III. Representative cultural relics with particularly important historical, artistic and scientific values are first-class cultural relics; Those with important historical, artistic and scientific values are second-class cultural relics; With more important historical, artistic and scientific value, it is a third-class cultural relic. Those with certain historical, artistic and scientific value are general cultural relics.
2. Pottery has a history of tens of thousands of years in China, and is generally made of fusible clay. In some cases, clinker or sand can be added to clay to reduce shrinkage. The firing temperature of these products varies greatly, depending on the nature and quantity of impurities contained in the chemical composition of clay.