Complex steel pipe

A new manufacture process and application instance of metallurgy integrated complex steel pipe is introduced.

介绍了一种新的冶金结合复合钢管制造工艺及工业应用情况。

In the production of cool rolling seamless steel pipe, its technology is complex, process is tedious and character is special, so the automatic control system of cool rolling mill is a complex system.

冷轧无缝钢管的生产工艺复杂、过程烦琐，具有独特的生产特点，因此冷轧机自动控制系统是一个复杂的系统。

The theatre steel roof of Henan Provincial Art Centre is a complex structural system, comprised of the in-plane penetrated weld pipe truss and three reinforced concrete elements underneath.

河南艺术中心大剧院是屋盖为平面钢管相贯桁架、下部由三个钢筋混凝土结构单元组成的复杂结构体系。