Our company is Henan Derun New Material Technology Co., Ltd. We are specialized in manufacture the Microcrystal Stone,It is a new modern green environmental material. The company has done R & D in Microcrystal , magic sponge and nano materials with a fully independent intellectual property rights,which are leading in domestic and overseas. It has fully passed ISO9001 International quality management system and ISO14001 international enviromental management system.Thanks to the professional technical team, sophisticated technology and long term professional technical innovation, the company has a large-scale production capacity, the R & D and production levels are among the highest in the industry. With advanced production technology and super technology equipment, it supplies customs with "Green, Safety, Ec