Address of Desheng Steel Pipe Factory, Zouqu, Changzhou City

No.48, Yegong Avenue, Zouqu Town, Zhonglou District, Changzhou City, 1. The length of steel with hollow section is much larger than its diameter or circumference. According to the section shape, it is divided into circular, square, rectangular and special-shaped steel pipes; According to the material, it is divided into carbon structural steel pipe, low alloy structural steel pipe, alloy steel pipe and composite steel pipe; According to the use, it is divided into pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment steel pipes, etc. According to the production process, it is divided into seamless steel pipes and welded steel pipes, in which seamless steel pipes are divided into hot rolling and cold rolling (drawing), and welded steel pipes are divided into straight seam welded steel pipes and spiral seam welded steel pipes.