How about the shaft pump shaft out of well pipe?
The front of the pipe is provided with a bell mouth; when the soft shaft is caught in the mine, the drawing line is a cone at the front, and returns to the pipe opening of the fishing tackle, and the flexible shaft can be pulled to pull up the flexible shaft
. There is also a fishing tool that can be scooped up. A pipe in which there is a line in the middle and a cone under the thread,
What material is the pipe wall, plastic or other material? You can find a magnet that can hold strong magnetic energy into the wellbore