“Circle”represents harmony with good fortune and good luck in Chinese traditional philosophy. In the structure of the splendid tea culture of China, dark-red enameled pottery teapot has been recommended as the best performed tea set. People love it not only because of its performance in tea-making, but also its material and making process in conformity with the Taoist philosophy of “five elements” and “ways of doing things from nature”. Circular form is largely used in the structure of the knob, lid, pot handle and pot belly. Every dark-red enameled pottery teapot handed down from generation to generation has the feature of round and delicate appearance with smooth lines, which is the carving of literati and contains the auspicious implication of perfection and reunion.