Steel Works steel production is mainly structural steel fabrication and installation, is one of the main building structure types. Steel construction in the choice of materials principles: the basic principles of steel have chosen, safe, reliable, economical and reasonable. Should be based on the importance of the steel structure, load characteristics, the connection method and conditions chosen for r steel villa, according to an important general, general and secondary buildings, an important component of the crane beams, etc.), the general components (roof trusses, beams, columns etc.) and secondary members (ladders, railings, etc.) were selected. Steel Works is the main structure of steel production, is one of the main building structure types. Steel construction principles in the choice of materials: Requires welded structures should be higher than bolted structure; cryogenic structure (temperature equal to or lower than the o ℃) requirements should be higher than normal temperature structure; erosion of media role in the structural requirements should be higher than normal structural work environment; requires thick steel structure should be higher than the thin steel structure. Knowledge _ _ Prudential Steel Steel Steel provided by Prudential Steel Works Ltd., Henan. Henan Prudential Steel Works Ltd. (www.ayhfgc.com) strong, credible, and other industries in other Anyang accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Prudential Steel and you hand into the brilliant, for a better future!