Founded in June, 1988, Changzhou Shengfeng Chemical Reagent Co., Ltd. is a specialized manufacturer and trader of chemical reagents, with a registered fund of CNY 0.5 million. Over more than 20 years' hard working, Shengfeng has experienced fast development, and now become a comprehensive manufacturing, development, and trade and service enterprise. Our main products are general purposed chemical reagents, including Refined Anhydrous Sodium carbonate, Sodium sulfide nonahydrate, and Reagent gra...