Hebei Shengweilong Commercial & Trade Co., Ltd., is a group company include Shijiazhuang Shengweilong Industry and Trade Co., Ltd. & Shijiazhuang Yingyi Agricultural Materials Company & YingYI(H.K.) International Trade Limited company and SHENGYI INTERNATIONAL TRADE LIMITED, was established in June 2005. Our company is a collection of managing chemical products, agricultural products processing. In 2005, we have rebuilt a modern management pattern, managing to attain a favorable second unde