钢结构方管的常见种类有哪几种1.轻钢结构，就是把彩钢板作为屋面和墙面，把薄壁型钢作为檩条和圈梁，并将焊接H型钢截面作为主和梁的一种结构，其连接则是采用螺栓连接或是焊接。轻型钢结构通常采用Q345方管和Q235方管，且大部分是Q345方管。Q…

方管广泛用于建筑，机械制造，钢铁建设等项目，在造船，太阳能发电支架，钢结构工程，电力工程，电厂，农业和化学机械，玻璃幕墙，汽车底盘，机场,锅炉建造，高速路栏杆，房屋建筑，压力容器，石油储罐，桥梁，电站设备，起重运输机械及其他较高载荷的焊接结构件也有大量使用。

Square pipes are widely used in construction, machinery manufacturing, steel construction and other projects, such as shipbuilding, solar power generation bracket, steel structure engineering, power engineering, power plant, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, boiler construction, high-speed rail, building, pressure vessel, oil storage tank, bridge, power plant equipment, lifting and transportation machinery and other high-load projects. Welded structural parts are also widely used.

　　成都市场方管价格或趋弱盘整运行厂家多处现款价…成都方管市场价大幅下跌。外围市场：今日钢坯执行明早结算价3300元，较昨降20元。期螺走势趋弱，现货市场普遍稳中有降。北京市场降10-20，螺纹主流价格在3580；天津 市场部分降10；杭州市场降50。本地市场：今日成都市…