When we buy the fried tea machine for use, it will definitely present some doubts. In fact, it is not a terrible job when the question is presented. What is terrible is that we found out that our tea machine is in doubt. I don't know what the factors are, so we don't have any way to repair it. It's a waste of time. We must know that our tea machine will need to stop all the repairs after they have doubts. Because only then can we know where the question is presented, and we still need to find someone to come to repair, so our work efficiency will be delayed. Therefore, we must know what kind of factors are caused by the use of tea machinery, so that our seamless steel pipes can immediately find out where the questions are presented, so that we can repair them quickly. So, this will not delay our working hours.