On May 13, Shandong Donghong Pipe Industry Co., Ltd. successfully rolled off the DN1200mm ultra-large diameter steel wire wear-resistant composite pipe, taking the lead in achieving mass production in the industry, filling the gap in ultra-large diameter steel wire wear-resistant composite pipe products for non-coal mines, marking that Donghong's technical strength has reached a new level.

After receiving the order from its customer Qingshan Holdings, Donghong responded quickly and immediately formed a special R&D team to open up the "production, supply and marketing" full-chain collaboration mechanism. The first DN1200mm steel wire wear-resistant composite pipe was officially rolled off the production line on May 13, and Donghong became the first domestic company with the mass production capacity of pipes of this specification.

This product has significant advantages such as high pressure, large diameter, and strong wear resistance. From material formulation, structural design to connection method, it has achieved 100% independent research and development, forming a unique technical advantage in the industry. The technological leap from dn1000mm to dn1200mm not only verifies Donghong's emergency response mechanism of "rapid R&D and rapid delivery", but also further enhances the company's industry competitiveness through its full-process autonomous and controllable innovation capabilities.

This breakthrough is an important achievement of Donghong's insistence on technological innovation. In the next step, the company will adhere to the business philosophy of "market-centric and customer-centric", continue to rely on the national enterprise technology center, national CNAS laboratory and intelligent production system, deepen the application expansion in various fields, promote industry upgrading with technological advantages, and provide global customers with better integrated intelligent pipeline solutions.