Categorized by material. Metal pipes, such as steel pipes, copper pipes, stainless steel pipes, etc.; plastic pipes, such as PVC, PE, PP pipes; ceramic pipes ; glass pipes; composite pipes, such as glass fiber reinforced plastic (FRP) pipes, steel-plastic composite pipes and so on.

Classification by use. Conveying pipes, used for conveying liquids, gases, solid particles and other substances; drainage pipes, used for discharging wastewater, rainwater, etc.; water supply pipes, used for supplying drinking water, industrial water, etc.

Categorized by design pressure. Vacuum pipeline, low pressure pipeline, high pressure pipeline, ultra-high pressure pipeline.

Categorized by conveying temperature. Low-temperature pipelines, normal-temperature pipelines, medium-temperature pipelines, high-temperature pipelines.

Classified by conveying medium. Water supply and drainage pipelines, compressed air pipelines, hydrogen pipelines, oxygen pipelines, acetylene pipelines, heat pipelines, gas pipelines, fuel oil pipelines, highly toxic fluid pipelines, toxic fluid pipelines, acid and alkali pipelines, boiler pipelines, refrigeration pipelines, purified pure gas pipelines, pure water pipelines, and so on.