1. First of all, the undershirt bag's bottom cracking process shows inconsistent tear sizes, which need to be addressed in a timely manner.
2, secondly, the size of the crack depends on the nature of the material, equipment, operating skills, and other factors, and it is necessary to analyze the specific reasons.
3, finally, if it is a material problem, you can replace the material with better quality; if it is caused by the condition of the equipment, you need to repair or replace the equipment in time; if it is a problem of operating skills, you need to train or adjust the operating method.