Hainan Steel tells you: Quality Management of Steel Structure Construction

Raw materials and finished approach: note the quality of imports of steel products shall comply with the new design and contract standards. Admission test to check the main qualification documents of product quality, the Chinese flag and inspection reports (including sampling reinspection report) and the like.
Steel Welding Engineering
Fasteners connection project: Note that when ordinary bolt as a permanent attachment bolts, when the design requirements or their quality is doubtful, you should check the bolts and physical reinspection report:
Steel parts and steel parts processing;
Installation of steel structures;
Steel coating.
Hainan Steel remind you; Additional Notes: steel construction process for temporary reinforcement, steel members supporting its raw materials, manufacture, welding, installation, corrosion, etc. should comply with the relevant technical standards and specifications.