Who We Are？
Tianjin Ruijie Steel Pipe Co., Ltd. is located in Daqiuzhuang Town Industrial Park, Jinghai District, Tianjin, covering a total area of 48,800 square meters. The company currently employs more than 400 staff members, including 18 senior engineering technicians and 31 technical professionals.
We have established a comprehensive quality management system in strict accordance with the ISO-9001 standard, with documented control procedures covering every stage – from raw material procurement and the entire production process, to inspection, testing, product delivery, and after-sales service – ensuring full traceability and monitoring throughout the entire production cycle. All quality inspectors and welding operators have been assessed by specialized institutions, with a 100% certification rate for special operation personnel, guaranteeing consistent product quality.
The company operates four double-sided submerged arc welding (SSAW) spiral steel pipe production lines, with an annual production capacity of 200,000 tons of steel pipes ranging from Φ219mm to Φ2020mm. We adopt world-leading German pipe manufacturing technology and have introduced advanced American Lincoln automatic welding equipment. Our products are manufactured in accordance with national standards GB/T 9711-2017 (for oil and natural gas pipelines) and SY/T 5037-2018 (for ordinary fluid transmission pipelines), as well as the American Petroleum Institute standard API 5L. These pipes are widely used in infrastructure projects including oil, natural gas, heating, gas pipelines, water supply pressure pipelines, and chemical engineering.
We have invested in a range of advanced inspection and testing equipment, including online ultrasonic automatic flaw detectors, Swiss "Comet" X-ray industrial television, French "Thomson" X-ray real-time imaging systems, and 2,000-ton hydrostatic pressure testing machines. These devices ensure strict quality control from a hardware perspective. Our products have been sold across China and exported to many countries, earning widespread customer recognition.
To further improve operational efficiency, we have established an advanced network platform to capture market intelligence in real time. To facilitate timely loading and delivery for our customers, we have installed large gantry cranes and organized a transport fleet with heavy-duty trucks, ensuring that all pipes are delivered to their destinations promptly.
In 2006, our company successfully won the bid to supply several thousand tons of spiral steel pipes for the Beijing Olympic Games main stadium – the Bird's Nest – contributing to the construction of this iconic venue. In 2019, we also supplied thousands of tons of steel pipes for the Beijing Daxing International Airport construction project, with superior product quality, competitive pricing, and excellent after-sales service, contributing to the successful completion and operation of the airport.
Since its establishment, the company has received numerous national honors and recognitions, including "Quality Trustworthy Enterprise," "Quality Top 100 Demonstration Unit," and "AAA-Level Credit Enterprise" by the China Enterprise Credit Association.
