Tianjin Jiu Long Steel Pipe Co., Ltd. is a supplier of square steel pipes..We specialize in the sale of square tubes, Q355B square tubes, Q345B seamless square tubes, Q345D seamless square tubes, Q345C square tubes, large diameter square tubes, stainless steel square tubes, 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 discuss business.

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

Upholds a solemn promiseOffer quality products, fair prices, and comprehensive services to thank both new and old customers for their trust.

Operation PrinciplesCustomers first, superior quality, comprehensive range, reasonable pricing!

Our company offers a full range of square and rectangular tubes, with superior quality, reasonable prices, and ample supply at our warehouse. We have an excellent reputation among peers in the domestic industry!