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 undertaking. We succeed in developing new products Ammonium Sulfate (powder and granular), Urea (prilled and granular),ammonium chloride (powder and granular), compound fertilizer and the related products . In 2006, we begun to energetically carry out the Just In Time mode of production, improving the speed of response continuous supply so that can save a lot of storage and reduce the production cost efficiently. At the same time, we imported ISO9001-2000 quality-monitoring system and qua... [Details]