Heavy-wall Large Square and Rectangular Tube

Yuantai Derun is a leading Square Steel Tube manufacturer in China, specializing in Square Steel Tubes, black square tube, hot-dip galvanized square tube, and Heavy-wall Large Square and Rectangular Tube  solutions. With 18 subsidiaries, advanced manufacturing facilities, and over 2,200 employees, we deliver consistent quality at scale. Certified to international standards including ISO, CE, BV, and DNV, our products meet global project requirements. Backed by strong R&D, integrated supply chain, and proven export experience, we provide reliable, high-performance steel pipe solutions for construction, infrastructure, and energy projects worldwide.