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 uses the concept of creating a deep sleep culture and building a 100-year furniture brand as its business concept, leading to a completely new modern family lifestyle. Ronga group products are designed in an elegant, sweet, romantic style, using pure cotton fabric, high-strength, condensing, soft hands, good water-sucking, silk-skinned, silk-skinned, silk-skinned; in the design of the styles, they are dominated by fur (head-skinned cattle), embroidery, stamped.... In combination with unique manufacturing processes and accessories, they combine artistic inspiration, fashion and modern technology. The lenga mattresses have been active in the development of soft-household business, the continuous introduction of advanced overseas technology and design concepts, and their improvement in order to ensure excellence. At the same time, companies have put in place rigorous quality testing systems, sound operations, an emphasis on lean management, and process quality management to ensure end product quality. The introduction of fabrics and the development of a series of high-end couches, soft beds and mattresses suitable for human-type and physical characteristics in china provide selected software for consumers. Provides each customer with high-quality furniture to shape the happiness of the family。