Jing xing Jewelry World in Kunming, Yunnan. Jing xing Jewelry World in Kunming, Yunnan specializes in buying and maintaining tea trays, so the old tea trays in jing xing Jewelry World in Kunming, Yunnan can be refurbished. Tea trays are used to place teacups. They are made of various materials and styles, such as full moon and chessboard.