Tianjin Ruijie Steel Pipe Co., Ltd. provided 2,500 tons of large-diameter ssaw spiral steel pipes to China Railway Group Limited in 2018, which were used as highway steel piling pipes. The diameter of the steel pipes was 529-1660mm.
We provided about 1800 tons of ssaw spiral steel pipe with OD 325-630mm, providing underground pipeline support for Beijing Nation Stadium Construction. Our company often participates in domestic large-scale project bidding activities.
In 2016, we provided 1000 tons of large diameter ssaw spiral steel pipe for the construction of Beijing Daxing International Airport, which was used as an underground pipeline laying project.