astm a53 sch40 black pipes carbon fiber square tube

Why Us

Ruijie Steel is  a leading manufacturer of welded steel pipes, galvanized pipe and square rectangular tubes.

• 12 years experience, sales volume reaches 2 billion US dollars.
• Good quality control in production process, ISO9001:2008,SGS, BV approved.
• Excellent quality and Competitive price, OEM is available.
• Available in an extensive range of stock or custom size.
• The whole process from material to finished products can be traced.
• Our factory is close to the port-Xingang,Tianjin.