EN 10219 is a European standard that specifies the requirements for cold-formed welded and seamless structural hollow sections made of non-alloy and fine-grain steels. It covers various aspects, including the manufacturing process, mechanical properties, and dimensional tolerances of these steel sections, ensuring they meet safety and performance criteria for construction and engineering applications. The standard is essential for ensuring the quality and reliability of structural components used in buildings, bridges, and other infrastructure projects. By adhering to EN 10219, manufacturers and builders can ensure that their products are compliant with European regulations, promoting safety and durability in construction.