Jinghai District is always honored as the "hometown of Chinese golden-silk jujube" which is mainly produced in Xizhaizhuang area. Jujubes in prunosus are oval with thin peel and small pit. Because of high sugar content, the flesh could be pulled into golden sugar silk. It is also honored as natural "Vitamin ball" because of sweet taste and rich nutrition. Preserved jujube and jujube drink could be processed into to meet different requirements of different people.