Baoxinglong brand light steel keel is a national standard. Baoxinglong brand light steel keel is a reference standard product formulated by China's national standards, which meets the requirements of the national standard "Building Light Steel Keels" (GB/T11981-2001). This standard specifies the classification, specifications, materials, performance requirements, inspection methods, marks, packaging, transportation and storage of light steel keel, and is the standard of light steel structure in China construction industry. Baoxinglong brand light steel keel is one of the well-known light steel keel brands in China. Its light steel keel products meet the requirements of national standards and have passed many quality tests and certifications. Therefore, it can be considered that Baoxinglong brand light steel keel is a product in line with national standards.