This article discusses the raw material assurance system developed by Great Wall Heavy Industry based on its core philosophy of 'material foundation and quality first.' Through cooperation with top international steel mills such as Belgium's Bilei, it strictly selects steels that meet international standards like ASTM and EN 10025 to ensure the safety and durability of steel structure products. The article highlights four core advantages: 1) Digital twin technology for full lifecycle management, adapting parametric modeling to AS5100/BS5400 standards; 2) A design team led by university professors adhering to international norms such as AISI/BS5400; 3) Modular design (such as the 321-type Bailey bridge and the 91-meter-span D-type bridge) to enhance construction efficiency; 4) An intelligent operation and maintenance system for fault warnings. In the future, Great Wall Heavy Industry will continue to deepen cooperation among industry, academia, and research to promote the intelligent up