Steel grades L245, L290, L360, L415, L450, X70, X80, etc., are used for oxygen, water, and oil transmission pipelines in the petroleum and natural gas industries. Specifications； Outer diameter: 0.4–60 mm Custom sizes available

J55, K55, N80, L80，C90, C95, P110 and other oil pipes are used for extracting petroleum or natural gas from oil wells, while casing serves as the wellbore wall in oil and gas wells. Specifications； with wall thickness grades ranging from Sch5S to Sch160/XS/XXS.

10#/20#/Q390/Q460/and other seamless steel pipes for conveying fluids, suitable for general-purpose seamless steel pipes used in fluid conveyance. Specifications； with wall thickness grades ranging from Sch5S to Sch160/XS/XXS.

Boiler tubes of grades 10#/20#/Q345(A/B/C/D/E) etc. For the manufacture of various structural low-pressure and medium-pressure boilers and locomotive boiler tubes. Specifications； with wall thickness grades ranging from Sch5S to Sch160/XS/XXS.

12CrMo/15CrMo/12Cr1Mo, etc. For furnace tubes, heat exchanger tubes and piping in petroleum refineries Specifications； with wall thickness grades ranging from Sch5S to Sch160/XS/XXS.

10#/20#/16Mn etc is suitable for chemical equipment and pipelines operating at temperatures ranging from -40 to 400°C and pressures between 10 and 32 MPa. Specifications； with wall thickness grades ranging from Sch5S to Sch160/XS/XXS.

20G/20MnG/25MnG/15MoG etc Suitable for manufacturing high-pressure boiler tubes, headers, steam pipes, etc. Specifications； with wall thickness grades ranging from Sch5S to Sch160/XS/XXS.

16MnDG/10MnDG/09DG/09Mn2VDG/06Ni3MoDG etc Cryogenic pipe Seamless steel pipes for cryogenic pressure vessel piping and cryogenic heat exchanger piping, suitable for temperatures ranging from -45°C to -195°C. Specifications； with wall thickness grades ranging from Sch5S to Sch160/XS/XXS.