Drill pipe is a tool used in geological exploration, mining, oil and gas drilling and other fields. It is a long tubular structure that connects drill bits and drilling tools (such as drill bits, reamers, etc.) to complete the drilling of underground rocks or soil by rotating and advancing.

Preventing cracks in seamless steel pipes involves many aspects, including proper manufacturing processes, proper operation and maintenance.

There are some key differences in structure and properties between duplex stainless steel and ordinary stainless steel (usually austenitic stainless steel).

Cleaning thick-walled seamless steel pipes usually involves removing surface grease, rust, oxides and other contaminants to ensure the long-term use of the pipes.

Boiler pipes are used for conveying fluids under various pressures and temperatures in boiler systems. They are categorized based on the pressure levels into low-pressure boiler pipe, medium-pressure boiler pipe, and high-pressure boiler pipe.

Casing is a pipe installed in a well, mainly used in underground projects such as oil wells, natural gas wells, water wells and geothermal wells.