Precision seamless tubes can be seamless tubes and welded tubes. Precision seamless steel tube features: high precision, high finish, no oxidized skin (film), high pressure resistance, no deformation in cold bending, no cracks in flaring and flattening, and good mechanical properties in tensile and impact resistance.
Precision seamless steel tube applications: vehicle manufacturing oil, gas, liquid transmission system; machinery manufacturing hydraulic system; engineering machinery, diesel engines, air conditioning machines, excavators, aerospace, shipbuilding, etc. can replace the imported tube.

Welded pipe, also known as welded steel pipe, basically made of steel plate or strip steel after coil forming and then welded into a steel pipe. The use of welded pipe is mainly used for boilers, automobiles, ships, Hong wu rented building with light structure of the doors and windows of the steel shelter megabytes, furniture, all kinds of agricultural machinery, scaffolding, wire threading pipe, high-rise shelves, containers and so on. Welded pipe classification by use of square hail sail method: according to the use of general welded pipe, galvanized welded pipe, oxygen blowing welded pipe, wire casing, metric welded pipe, roller pipe, deep well pump pipe, automotive pipe, transformer pipe, electric welded thin-walled pipe, electric welded shaped pipe and spiral welded pipe.

Oil pipe is the pipeline that transports crude oil and natural gas from the oil and gas layer to the surface after the drilling is completed, and it is used to withstand the pressure generated during the extraction process. It can also be used in excavators, loaders, side dump trucks, hydraulic booster, hydraulic support, cement conveying hose, agricultural irrigation hose, hydraulic oil hose for construction machinery, submarine natural gas transmission, oil transportation and other fields.

Spiral pipe, also known as spiral steel pipe or spiral welded pipe, low carbon structural steel or low alloy structural steel strip according to a certain angle of the helix (called forming angle) rolled into a billet, and then welded the pipe seam made, it can be a narrower strip to produce large diameter steel pipe.

High-pressure alloy tube is a kind of tube that can be subjected to pressure, using this tube to transport liquids and gases. High-pressure alloy tube: mainly used to manufacture high-pressure and above pressure steam boiler pipeline with high-quality carbon structural steel, alloy structural steel and stainless heat-resistant steel seamless steel tube, these boiler tubes by the party in the high temperature and high pressure work, the tube in the high temperature flue gas and the role of water vapor oxidation and corrosion will occur, so the requirements of the steel tube has a high enduring strength, high resistance to oxidation, and has a good organizational stability.

High-pressure boiler tube is a type of boiler tube and belongs to the category of seamless steel tube. The manufacturing method is the same as that of seamless pipes, but there are strict requirements for the type of steel used in manufacturing steel pipes. High-pressure boiler tubes are often exposed to high temperature and high pressure conditions during use. Under the action of high-temperature flue gas and water vapor, the tubes will oxidize and corrode. Steel pipes are required to have high lasting strength, high resistance to oxidation and corrosion, and good structural stability.

Square tube is a hollow square cross-section lightweight thin-walled steel tube, also known as steel cooling bending profiles. It is Q235 hot-rolled or cold-rolled steel strip or coil as the base material by cold bending process after molding and then by high-frequency welding made of square cross-section shape size of the steel. Hot rolled extra thick walled square tube in addition to wall thickening, its corner dimensions and edge straightness have reached or even exceeded the level of resistance welding cold-formed square tube.