渤海建国前至渤海建国初期，最具代表性的陶器主要是重唇筒形罐和敞口鼓腹罐。
The most popular kinds were the tube-shaped pot with double lips and the bulging-belt pot with open mouth from the time the kingdom wasn 't built to the early stage of the Pohai Reign .
鼓腹罐