Tianjin Jiu Long Steel Pipe Co., Ltd. is a supplier of square steel pipes..We primarily sell square pipes, Q355B square pipes, Q345B seamless square tubes, Q345D seamless square tubes, Q345C square pipes, large diameter square pipes, stainless steel square pipes, galvanized square tubes, seamless square tubes, and special (non-standard) square rectangular tubes.

    Our products comply withGB/T 13793-92, GB 6728-86 standards and Japanese JISG3445, JISG3446 standards.

The company seeks development through quality.Welcome clients with integrity; the company sincerely invites friends from all walks of life to come and discuss business.

    Production Range60 Round Pipex60-300300MM thickness; 3-12MM rectangular tube 60x70-300400mm thickness; 3-12mm.

We solemnly promiseWith superior products, reasonable prices, and comprehensive services, we thank both new and old customers for their trust.

Business PrinciplesCustomer first, high-quality, comprehensive selection, reasonable pricing!