D-shape tubes, D-shape tube manufacturers, D-shape tube factory
Tianjin Jiatong is an integrated enterprise specializing in production, processing, and sales. Our product range includes: elliptical tubes, flat elliptical tubes, pointed elliptical tubes, galvanized elliptical tubes, oval pipes, triangular pipes, diamond pipes, convex pipes, concave groove pipes, plum blossom pipes, ingot pipes, D-shaped pipes, T-shaped pipes, P-shaped pipes, figure-8 pipes, heating pipes, pentagonal pipes, hexagonal pipes, octagonal pipes, and more. We also offer custom processing of various specifications of special-shaped steel pipes according to customer drawings.
The company boasts a team of engineering talents and numerous skilled technical workers. Under our stringent quality control system, product quality and price advantages are continuously enhanced, and our products are highly favored by a wide range of customers. Driven by a spirit of innovation, diligence, and pragmatism, we strive to achieve excellence in management, reputation, quality, and service. Welcome domestic business partners to visit and provide guidance!
Product materials include: Q195, Q215, Q235, Q345, St37-2, SS400, St52-3, 16Mn, J55, 20#, SM490A, SM520A, ASTM A106 GR.B, and various carbon, steel, and alloy steel. Products comply with standards such as GB-T6725-2002, GB-T6728-2002, GB-T3094-2000, LW, T02-2004, DIN59410, JISG3466-88, and EN10210.












The company adheres to the corporate philosophy of "Innovation Achieves **," continuously meeting the diverse needs of our extensive clientele. Under our stringent quality control system, product quality and price advantages are consistently enhanced, earning our products widespread popularity among customers.
Our factory utilizes advanced foreign technology and production processes, combined with years of production experience, to successfully develop over 1,000 types of special-shaped tube materials. The D-shaped tubes, guardrail tubes, bread tubes, and flat round tubes we sell are widely used in industries such as steel structure construction, machinery equipment, locomotive manufacturing, and decorative decoration. We offer a complete range of materials and specifications.































