All the staff of Southern steel firmly believe that quality is the life, fabricated steel enterprises, safety is the only basis for bridge.

The actual requirements of steel quality control in the South (part):

Prefabricated bridge south steel manufacturing, in strict accordance with "the people's Republic of China Ministry of Transportation Highway Bridge and culvert design fabricated steel bridge" (JT/QS0012-65), adhere to the three principles: no manufacturing process must not arbitrarily change the design; never use alternative materials; never any relaxation of manufacturing precision, and in strict accordance with the design drawings rules each execution.

The southern steel according to the careful design of the fabricated steel processing, and in manufacturing to design the content of the following check process:

1, the structure and dimensions;

2, member of all parts of the degree of standardization, Interchange requirements, as well as the existing equipment and technical conditions to adapt to the situation;

3, reasonable arrangement of weld and weld thickness, quality standard;

4, tolerance, manufacturing process, a reasonable degree of accuracy, quality requirements;

5, the selection of steel varieties, specifications, quantity and supply possibility;

6, trial assembling, paint, packaging and delivery method.

The steel used in steel production, in strict accordance with the requirements of the drawings, specifications, material order. Each batch of incoming materials, must have the quality certificate of product manufacturers, to verify its chemical composition and mechanical properties are in accordance with the provisions of GB/T1591-94. Factory certificate of no steel, according to sampling and mechanical properties of the national standard "steel" (GB2975-82) and the international "steel sample for chemical analysis (GB222-84) by law" provisions of the sampling, testing and chemical analysis and mechanical properties, proof of compliance with the international standard, can use.

According to the standards of other southern steel manufacturing process:

The national standard of the people's Republic of China: GB 50205-2001 "code for acceptance of construction quality of" TB/10212-98 ", code for fabrication of railway steel bridge". The Ministry of communications standards: "technical specification for construction of highway bridges and culverts" (JTJ 0412000), highway bureau of the Ministry of Communications (79) highway straight No. sixteenth selection "fabricated steel manufacturing and inspection, the acceptance method" (Draft)