... Structure Storage Bunker (Single,Double,Trio) For Accommodation(Coal,Concrete) Hangzhou Zhongxin Steel Structure Make Co., Ltd( hereinafter ... Structures,basic building elements(built-up welded H-section , hot-rolled H-section, channel, steel column, steel beam ... panels and other steel structure projects such as industrial plant/workshop/factores, airport terminal, highrise building,bridge,commercial ...