Our high-quality carbon steel rectangular tubes are manufactured from premium carbon steel, available in both seamless and welded construction types. These tubes feature precise right angles and excellent weldability, making them ideal for construction frameworks, machinery guards, and decorative applications. Custom sizes and a variety of surface treatments are also available to meet specific customer requirements.

Our carbon steel rectangular pipes — both seamless and welded — are manufactured on fully automated production lines. For seamless varieties, we utilize precision hot extrusion and piercing mills for superior dimensional consistency. Welded pipes are formed through advanced ERW or cold-forming technology, followed by high-frequency welding. All pipes undergo strict quality checks including ultrasonic testing, dimensional verification, and surface inspection to ensure reliability and performance in structural applications.

In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.

Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.