1. Seamless Steel Pipe
OD: 13.7-610 (1/4"-24")
THK: Sch30-Sch160
Standard: GB/T8162-1999, GB/T8163-1999, ASTM A53, ASTM A106, API 5L /Gr. B, DIN1629
Material: 10#, 20#, 45#, Q345, ST35.8, ST37, ST42, ST45, ST52, A53, A106, A192, A179, A210, API 5L / GR. B-X60, API 5CT /J55 K55 N80

2. ERW Steel Pipe
OD: 88.9-610 mm (3"- 24")
THK: Sch5s-sch160xxs
Standard: GB/T 3091-2001, GB/T9711.1-97, ASTM, API SPEC 5CT, API 5L
Material: 16Mn, Q235, Q345, Q295, L245, L260, X42, X52

3. LSAW Steel Pipes
OD: 457-1020mm (18"-40")
THK: 6-60mm
Standards: GB/T 3091-2001, API 5L, API 5CT, ASTM
Material: 16Mn, Q235, Q345, Q295, L245, L260, X42, X52

4. SSAW Steel Pipe
OD: 219.1-2820mm (8"-111")
THK: 5.56-32mm
Standard: API SPEC 5L, ASTM, GB/T9711.1-1997, GB/T5037-2001, GB/T5040
Material: 16Mn, Q235, Q345, Q295, L245, L260, X42, X52

Special finished subject to customers requested:
1) Varnish coating/Anti rust oil/PE antisepsis
2) Beveled ends
3) Plastic caps

If you have any requirement among above items, pls feel free to contact me, I am at your complete disposal for any request!