1. Strengthen the inspection of various raw materials used in the production of reinforced concrete culvert pipes to prevent the strength of the concrete pipe body from being affected due to substandard raw material quality. 2. Concrete should be mixed strictly according to the construction ratio determined by testing, and the slump of the concrete mixture or technical requirements for concrete shaping should be frequently checked. Additionally, the concrete should be sampled and tested regularly. 3. The reinforcing steel frame is a major guarantee for the bearing capacity of concrete, so the steel frame of the culvert must be manufactured according to the design drawings. During the frame forming process, the frame forming technical specifications must be strictly enforced to ensure the frame dimensions and concrete protective layer requirements. 4. After the cement culvert mold assembly, the dimensional errors of all parts should meet the specification tolerance requirements to ensure that the outer dimensions of the culvert do not deform. 5. When using the centrifugal process to manufacture pipes, the reasonable centrifugal time should be determined based on the performance of the pipe-making equipment and the actual production situation. This is to avoid insufficient concrete compaction due to a short centrifugal time and severe stratification caused by an overly long centrifugal time, while minimizing the damage to the formed concrete structure from impact and vibration. 6. When using the suspended roller process to manufacture pipes, the feeding amount during molding should be about 3 to 5 millimeters above the挡圈 after compaction to ensure the concrete is compacted by the roller.