Ronga group has grown into a high-tech enterprise in china with a central call for "ecological health" and with a high-tech eco-health series of products in its lead. In 2002, general manager zhang presented the "ecohealth sleep theory" as a core basis for the successful development of the "eme" eco-energy alkyl and eco-energy bio-sleeping systems. This result not only fills the gaps in this area at home and abroad, but also includes the selection of the ministry of science and technology's foundation support project. The results have been assessed by the csam advisory group as having reached an internationally advanced level in general and an international level in part. Renga group is a large modern furniture enterprise that combines research and development, design, production, sale, planning and service. The product consists mainly of soft beds, mattresses, couches, hardware, closets. There are four brands of "elybert" and "sono" and "the beijing sofa" and "flaty." the company u...