Material grid applications due to rising steel products and the strength of the repair grid, spatial structure is also more and more use of steel, steel, steel bars, steel cables and even products. In large part, the spatial structure became a "space of steel." Research prestressing steel. Prestressing steel use is a high-strength steel instead of part of ordinary steel truss room, in order to achieve the purpose of saving steel. From the beginning of the fifties of the prestressing steel theoretical and experimental research grid, until now used in engineering or small steel grid, remains to be studied. Spatial structure. Space grid structure to replace the system can save steel flat structure, in large span economic effect is particularly significant, should be further studied. Housing grid, grid, Guangxi Guangxi Galaxy Galaxy is provided by the metal structure Engineering Limited. Guangxi Galaxy Metal Structure Engineering Co., Ltd. (www.gxmmr.cn) strong, credible, in Nanning, Guangxi's activity room industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Guangxi Galaxy and you hand into the brilliant, for a better future!