BEIJING, June 1 (Xinhua) -- China has issued a circular on speeding up the integration of rural e-commerce and express delivery systems to better link production and consumption between urban and rural areas. The country will upgrade county-level logistics distribution centers and build demonstration zones for the coordinated development of rural e-commerce and express delivery services, said the circular jointly issued by the Ministry of Commerce and seven other government agencies. China aims to further facilitate the circulation of agricultural products from villages to cities, and consumer goods from urban to rural areas, said the circular. Measures will be taken...