1. Seamless steel pipe for structural use (GB / T8162-1999): Mainly used in general structure, mechanical structure.

2. Seamless steel pipe for conveying fluid (GB / T8163-1999): Mainly used for conveying piping. For example: central air conditioning, cold storage, gas, fire engineering.

3. Low and medium pressure boiler seamless steel pipe (GB3087-1999): Mainly applicable to low, medium pressure boiler superheated steam pipe, boiling water pipes and other heat pipe fittings.

4. Hydraulic and pneumatic cylinder with precision diameter seamless steel pipe (GB / T8713-1988): mainly used in the manufacture of hydraulic and pneumatic cylinder and other internal and external surface roughness requirements are high, inside and outside the size of the requirements of precision fittings. For example: jack, shock absorber, motor shell, cylinder, injection molding machinery.

5. Cold-rolled seamless profiled steel pipe (GB / T3094-1999): mainly used for the manufacture of general structural parts.

6. Seamless steel pipe for ships (GB / T5312-1999): Class 1 and Class 2 pressure pipes for the manufacture of ships.

7. Bearing steel pipe (YB / Z12-77): mainly used in the manufacture of rolling bearing rings.

8. Hydraulic prop pipe: mainly used in the manufacture of coal mine hydraulic prop, lifting the pillars, hydraulic cylinder cylinder.

9. Cold drawn precision welded pipe: mainly used for bicycle pipe material.