We mainly produce molecular sieves, silica gel and the related products. Our annual capacity is over 20, 000 tons. With the close cooperation with China Academy of Sciences, ZHONGBAO has been becoming a master expert in molecular sieves field. Especially in recent years, ZHONGBAO has mastered many technologies for producing special molecular sieves: For oxygen and nitrogen concentration; for Insulating Glass desiccant; for refrigerant filter; for petrochemical refinery; for additives of sealant, paint or lacquer. ZHONGBAO products are designed just as your demands. Developing new products, resolving your problems are ZHONGBAO ?s untiring career. Welcome to ZHONGBAO, China!