1.   Quality standard

• Certification: ISO9001:2000, SGS Standard
• Code for design of steel structure: GB 50017-2003
• Technical code of cold-formed thin-wall steel structure: GB50018-2002
• Load code for the design of building structures. GB 50009-2006
• Construction quality acceptance of steel: GB50205-2001

2.  Material grade and performance of steel

• Carbon structural steel: Q235.
• High-strength low-alloy structural steel :Q345
• Special purpose steel

3.  The characteristics of steel

• Light weight steel structure
• Environmental protection (recyclable steel)
• Higher reliability of steel work
• Strong anti-vibration (earthquake)
• Higher degree of industrialization
• Quick to be assembled accurately
• Larger interior space
• Poor fire-resistant steel