我們在日常生活中其實很常見這種方管的，就目前使用方管的行業(yè)來說那真的是數(shù)不勝數(shù)，我舉幾個例子比如：建筑，機(jī)械制造，鋼鐵建設(shè)等項目， 造船，太陽能發(fā)電支架，鋼結(jié)構(gòu)工程，電力工程，電廠，農(nóng)業(yè)和化學(xué)機(jī)械，玻璃幕墻，汽車底盤，機(jī)場,鍋爐建造，高速路欄桿，房屋建筑，壓力容器，石油儲罐，橋梁，電站設(shè)備，起重運輸機(jī)械及其他較高載荷的焊接結(jié)構(gòu)件等。

In fact, we are very familiar with square pipes in our daily life. For the industry using square pipes at present, there are countless. Let me give a few examples: construction, machinery manufacturing, steel construction, shipbuilding, solar power generation support, steel structure engineering, electric power engineering, power plants, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, boiler construction, etc. Highway railings, buildings, pressure vessels, oil tanks, bridges, power plant equipment, lifting and transportation machinery and other welding structures with higher loads.