Round, Square, Rectangular & Oval Pipes | Head Reduction, Drilling, Threading & Bending Services.
From Greenhouses & Steel Structures to Municipal Engineering – Custom Sizes & Processing Available.
National Standard Steel Pipes | Factory Direct Pricing | 2026 Foreign Trade Subsidiary Established.
ZHONGTIAN (Tianjin Yujie Steel Pipe Trading Co., Ltd.) is a professional steel pipe manufacturer, supplier, and factory in China, established in 2022 and located in Daqiuzhuang, Jinghai District, Tianjin – the renowned "Steel Capital" of China.
With a 30,000㎡ production base, we integrate manufacturing, deep processing, and global trading. By 2026, our cumulative sales exceeded 500 million RMB, and we have officially expanded into international markets through our foreign trade subsidiary.
As a leading steel pipe manufacturer and supplier in China, ZHONGTIAN produces and processes all types of steel products:
We are equipped with complete pipe-making machines, laser cutters, CNC drilling, bending and threading automatic production lines to guarantee stable product quality.
Quick answers on specs, processing, and shipping. Check our FAQ or ask directly—we're here to help you move forward.
Tianjin YuJie Steel Pipe Trading Co., Ltd.'s factory is located in Daqiuzhuang, Jinghai District, Tianjin, China's renowned "Steel Capital," covering an area of approximately 30,000 square meters. Leveraging a mature steel industry chain and convenient logistics system, the company provides stable and efficient steel pipe production and processing services to domestic and international clients.
The company primarily produces and processes national standard steel pipes of various specifications and wall thicknesses, including Welded Steel Pipe, Seamless Steel Pipe, Steel Profiles, Portable Container Houses, angle steel, flat steel, and rebar. These products are widely used in construction engineering, machinery manufacturing, steel structures, agricultural greenhouses, municipal engineering, and industrial supporting fields.
Core principles of hot-rolled seamless pipe production: Heating and piercing a solid steel billet → rolling into a hollow tube shell → multi-pass wall reduction and sizing → cooling and finishing. The process involves no weld seams, resulting in superior overall pressure-bearing performance.
Features of spiral welded pipes: It can produce large-diameter, thick-walled steel pipes, has strong pressure-bearing capacity, long single pipe length, and the cost is suitable for large pipe diameters. The welding seam is spiral. It mainly focuses on medium and large pipes above DN300, and is mostly used for burial, long-distance transportation, and large steel structures.
Produced via continuous forming from hot-rolled or cold-rolled steel strip coils, the process ensures high raw material utilization and a streamlined workflow. Costs per ton are 10%–30% lower than those of seamless or spiral-welded pipes, offering significant advantages for bulk procurement.
Straight Seam Welded Steel Pipe has become an essential solution for industries that require strength, precision, and cost-effective performance. From construction projects and oil transportation systems to structural engineering and industrial manufacturing, these pipes provide excellent durability and consistent quality. This article explains how straight seam welded steel pipes work, why they are important, what challenges buyers often face, and how to select the right supplier for long-term value.
When temporary accommodation, project offices, site facilities, or emergency shelters need to be installed within a short period, conventional construction can require considerable transportation, labor, and assembly time. The ZHONGTIAN Quick Foldable Prefabricated House provides a practical alternative with a foldable structural design that supports efficient transportation, rapid installation, and repeated use in different project environments.
In the development of modern infrastructure, energy transportation, construction engineering, and industrial manufacturing, steel pipes remain one of the most critical structural and fluid transportation components. Among various steel pipe manufacturing technologies, Longitudinal Welded Steel Pipe continues to play an important role due to its stable performance, dimensional accuracy, and cost-effective production advantages.
