Steel casing pipe grouting is a commonly used geological engineering construction method and is widely used in tunnels, bridges, water conservancy projects, drilling and other fields. Its main function is to reinforce and seal underground cavities and cracks to prevent geological disasters.

Connection methods of welded steel tubing include threaded connection, flange connection, welding and groove clamp connection.

There are two commonly used methods for casing condition detection: the engineering logging method and the mechanical method.

Seamless(SMLS) mechanical tubing refers to tubing that is manufactured without any seams or welds along its length. This type of tubing is typically produced through a process called seamless steel pipe manufacturing, where a solid cylindrical billet is heated and then pierced to create a hollow section.

Spray painting is a common surface treatment used to protect and beautify black steel pipes. Painting can help prevent steel pipes from rusting, slow corrosion, improve appearance quality, and adapt to specific environmental conditions.

Galvanized square pipe is a square-section steel pipe with hot-rolled or cold-rolled galvanized strip or galvanized coil as blank. It is formed by cold bending and then high-frequency welded.