On the 7 day, hundreds of selenium rich vegetables and fruits "gathered" in the hall of the exhibition center of Shandong famous special agricultural products in Shandong Province, attracted a lot of people and colleagues to buy and buy. On the morning of 7, more than 100 cooperatives, production bases and agricultural parks displayed various kinds of selenium rich agricultural products in the hall, including corn, millet, flour, noodles, hawthorn, yam, grape and so on. These agricultural products are all tested selenium enriched products, with certificates and test reports placed beside them.