The "round to square" unit independently developed by Tianjin Yuantai Derun Group has a maximum processing diameter of 1000mm × 1000mm square tube, 800mm × 1200mm rectangular pipe, with a maximum wall thickness of 50mm, has the processing capacity of super large diameter and super thick wall rectangular pipe, which has been successfully supplied to the domestic market up to 900mm × 900mm × 46mm, maximum outlet 800mm × 800mm × 36mm super large diameter and super thick wall products meet various complex technical requirements of users at home and abroad, including 400mm rectangular tubes × 900mm × 30mm products also represent the leading level of "round to square" process at home and abroad.

In terms of cold bending technology, Tianjin Yuantaiderun Group has accumulated for nearly 20 years and is able to customize profiled structural steel pipes according to customer requirements. The picture shows a customized "octagonal steel pipe" for a large amusement park in China. Because the design parameters need to be cold bent and formed at one time, the diameter and wall thickness requirements of this product have been inquired by major domestic manufacturers for nearly three months. Finally, only Tianjin Yuantaiderun Group met its various requirements, and successfully produced nearly 3000 tons of products and completed all the supply services of the project alone.

The market advantage of Tianjin Yuantai Derun Group is that there are many molds, complete varieties and specifications, and fast delivery cycle of conventional non-standard orders for square and rectangular pipe units. The side length of square steel pipes is from 20mm to 1000mm, and the specification of rectangular steel pipes is from 20mm × 30mm to 800mm × 1200mm, the wall thickness of the product is from 1.0mm to 50mm, the length can be 4m to 24m, and the sizing accuracy can be two decimal places. The sizing of the product increases our warehouse management difficulty and management cost, but users will no longer need to cut and weld the product, greatly reducing users' processing costs and material waste. This is one of our innovative practices facing the market and focusing on customers, It will also be maintained for a long time; Through the research and development of new equipment and the introduction of new processes, in addition to conventional square and rectangular pipes, it can also produce various non-standard, special-shaped, multilateral special-shaped, right angle and other structural steel pipes; Large diameter and thick wall structure pipe products have been added to the new structure pipe equipment, which can Φ 20mm to Φ 1420mm structural round pipe with wall thickness of 3.75mm to 50mm; The spot inventory maintains a full specification of Q235 material from 20 to 500 square meters, and provides a year on year Q235 material inventory. At the same time, it is equipped with a spot inventory of Q355 material above 8000 tons and a year on year Q355 material inventory to meet the customer's order delivery capacity of small batches and urgent construction period.