Tianjin Yuantai Derun Group's "round to square" unit, developed in-house, boasts a processing capacity for large-diameter and extra-thick-wall rectangular tubes with a maximum diameter of 1000mm × 1000mm, 800mm × 1200mm rectangular tubes, and a maximum wall thickness of 50mm. We are pleased to announce that we have successfully supplied the domestic market with products up to 900 mm × 900 mm × 46 mm, and exported products up to 800 mm × 800 mm × 36 mm. These products include super-caliber, ultra-thick-walled products that meet various complicated technical requirements of users at home and abroad. This includes rectangular tube 400 mm × 900 mm × 30 mm products. We are proud to say that our "round to square" technology is at the leading level both at home and abroad.

The Wuhan Greenland Center, rising to a design height of 636 meters, stands as the third tallest building in the world and a landmark of modern architecture in China. This iconic super high-rise steel structure project was supplied by Tianjin Yuantai Derun Group, a leading square & rectangular steel pipe and structural steel manufacturer known for providing high-strength, precision-engineered materials for construction projects all over the world.

After years of process improvement, the outer arc of the large-diameter ultra-thick rectangular tube produced by Tianjin Yuantai Derun Group's "round to square" process successfully overcomes the defects and "deformation" that are prone to cracking during the round to square bending process "The process pipe surface flatness control is difficult, which can meet the requirements of domestic and foreign relevant standards for products and the control of customers' special technical parameters. The products are widely praised in key engineering projects exported to the Middle East, and can basically replace the original in China. As for the "box-shaped column" products in the matching steel structure enterprise, the rectangular rectangular tube products have only one weld seam, and their structural stability is much stronger than that of the "box-shaped column" products formed by welding steel plates with four welds. It is evident in the requirement that Party A designates the use of "rectangular tubes" and prohibits the use of "box columns" in some key projects abroad.