What is called a flange hole?
You can choose the answer to "I love Tieguanyin"!! The last sentence should be "those holes" instead of "that hole"".
The hole on the flange is called "Lan Kong"
I am engaged in industrial equipment maintenance work, almost every day contact flangeLet's talk about the flange first. The flange is used on the pipe, the fittings and the pipe line. There is a hole in the middle of the disc. It is the same as the diameter of the pipe. There are many screw holes around it. The hole in the middle is the flange hole
