1. The appearance of anti-corrosion steel pipes entering and leaving the warehouse needs to be checked as follows:

①Check each pipe to ensure that the surface of the polyethylene layer is flat and smooth, without dark bubbles, ptting, wrinkles, or cracks, and the overall color needs to be uniform. The surface of the pipe should not be excessively corroded.

Feature 1: Higher accuracy
Precision carbon steel pipes have high processing accuracy and can be used to manufacture high-precision mechanical parts. This is because the production and processing of precision carbon steel pipes are relatively complex and require advanced processes and equipment to ensure their high quality.