Zhengzhou Dengfeng Smelting Materials Co., Ltd. (DFSM) was founded in 1986 and is a high & new technological enterprise in Henan Province. Our company mainly produces DUCK Brand series of Aluminate Cements (or named Refractory Cements/High Alumina Cements), unshaped refractory Castables and Aluminate Cements specially used for Dry Mix Mortar. DFSM currently owns 6 production lines of rotary kilns and 2 production lines of electric furnace. Our annual output is more than 300000MT.

DFSM has over 900 employees and 126 of them are engineers & technicians. Prof. Zhou Jinan is an expert at national level, standing director of Refractory Branch & honorary board chairman of China Silicate Society, consultant of China Refractory Association and the former head of Refractory Research Institute of China Building Materials Academy. Under her direct guidance, our company has brought up many excellent technicians. Over ten years, DFSM has already developed some high & new technological products.

DFSM was firstly awarded the right to directly export aluminate cements in China by Ministry of Foreign Economic Relation and Trade in 1992. DFSM passed the evaluation of ISO9001 Quality Management System Certification and ISO14001 Environmental Management System Certification in 2003. The Quality Inspection Centre of DFSM was approved by National Laboratory Approval Committee of China in 2004.

At present, our DUCK Brand products are the widest in varieties, the most superior in properties, the highest and most stable in quality and largest in output in China. All the products are widely used in refractory, building materials, metallurgy and chemical industries. Our customers are from all over the country. At the same time, our products sell well in more than 40 countries and regions, such as Japan, Korea, America, Germany, Taiwan Area and Hong Kong. They have obtained the confirmation and favor from domestic and overseas users.

For the future, DFSM will continually focus on the research & development of new and advanced products and continually improve our products and service for domestic & overseas customers with more zealousness.