A component of a hip roof system, the hip truss has an eave line which extends to the same level ... There are two types of trimmable trusses. Hybrid floor trusses have steel webs and top and bottom ...

Hot-rolled steel purlins predate modern metal building systems by decades. A multitude of industrial buildings constructed since the beginning of the twentieth century utilized hot-rolled channel and ...

[Photo by Liu Boqian/For chinadaily.com.cn] Huajiang Grand Canyon Bridge in Guizhou province completed its first steel truss lift on Monday ... world's largest cable crane system, incorporating ...