"Rome was not built in a day" illustrates that sometimes a thing does not happen suddenly, but is accumulated little by little.

　　Recently, a steel plate accident occurred in a steel plant, causing a lot of equipment damage, after the investigation, because the thread of the jaws of the lifting pliers has been worn out. During the lifting process, the friction of the thread could not be relied on to grasp the steel plate well, which resulted in the accident.

　　According to this matter, we should pay attention to the fact that in order to increase the friction between the lifting pliers and the steel plate, the lifting pliers are generally threaded. However, each use is a process of thread wear, just as we walk, the sole will be more light than once, the sole is too light to walk on the smooth road surface is easy to fall.

　　Therefore, when using the lifting pliers, we should always pay attention to the degree of wear of the pliers thread, and when the thread wear is too large, we need to replace a new lifting pliers as soon as possible.

　　The occurrence of all accidents is due to people's carelessness and a little bit formed, only we always pay attention to these details, do a good job of prevention, will be able to kill the accident in the cradle.

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