Handmade Work Celadon Tea Cup From Longquan Kiln by Chinese Artist Yong Chen Longquan kiln is one of the top 6 kilns in China's history. Handmade with traditional hand pulling skills by Chinese artist Yong Chen. Yong Chen is a student and the son-in-law of Aiming Chen, who is one of top 4 porcelain artists in China with many top level awards.