Steel pipe piles are widely used in various situations such as supporting piles and friction piles. Especially when it is used as a supporting pile, it can be fully driven into a relatively hard supporting layer, so it can exert the bearing effect of the strength of the entire section of the steel.

In long-distance pipeline transportation projects, pipeline welding is regularly the maximum vital processing step, so the selection of welding joints and welding techniques at some stage in processing turns into extra vital. In standard welding operations, constant welding, rotary welding, and