Who We Are

Tianjin Ruitong Iron and Steel Co., Ltd. is located in Daqiuzhuang, China Pipeline Equipment Base. It was founded in 2003. It covers an area of 35,000 square meters, has a construction area of 10,000 square meters, registered capital of 20 million, has 16 advanced production lines, and is equipped with high-standard physical and chemical laboratories and advanced testing equipment. Annual productivity reached 200,000 tons. The company has more than 260 employees, including 30 engineers and technicians.

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Tianjin Ruitong Steel Co.,ltd. Is located at Daqiuzhuang town,wich is the pipeline equipment base of china.It was founded in 2003 ,covers area of 345 thousand square meters,building area of 21 thousand square meters,registered capital of 50 million and total assets of up to 350 million RMB,now we own 11 production line..

Common defects and prevention of welded pipe

Defects produced in the actual production of high-frequency welded pipes(astm a53 grade b erw pipe) are sometimes not caused by one cause, but are usually the result of a combination of multiple factors. Welding defects may also be caused by other reasons outside the welding area, so many factors...

Harm of excessive weld seam height of welded pipe

With the rapid development of high-quality strip continuous rolling production and the advancement of welding and inspection technology, the quality of welds continues to improve, and there are more and more types of welded pipes, which have replaced seamless steel pipes in more and more fields. ...