Steel bar detection is an important link to ensure the quality and safety of reinforced concrete structures. Here are some steps for inspecting rebar:

1. Check the manufacturer's label to confirm that the gold bar complies with the appropriate standards and specifications.

2. Perform a visual inspection to check for any visible deformation, cracks or damage.

3. Measure the diameter of the rebar with a calibrated measuring tool to ensure it meets the required specifications.

4. Verify the weight and length of the reinforcement to confirm that it meets the required standards.

5. Ensure that the steel bar spacing meets the requirements of the design drawings.

6. Conduct magnetic particle inspection to detect any surface cracks or discontinuities.

7. Check the end of the steel bar processing to ensure that the cutting is straight, free of cracks, and meets the length specification.

8. Check the bending angle of the steel bar to ensure that it meets the design specifications.

9. Verify that the protective coating on the reinforcement is in good condition to prevent corrosion.

10. Record the inspection results and submit them to the project manager for review and approval.

It is very important to follow these steps to ensure the quality of the reinforcement and avoid any problems during construction.