1. Seamless steel pipe for general use: ASTM A 53 GR. B, Grade: SA53B, Size: 1/8"-28", 17-711.2mm.
2. Seamless steel pipe for high temperature: ASTM A 106 GR. B, Grade: SA106B, Size: 1/8"-24", 17-610mm.
3. Pipeline: API SPEC 5L. 5CT Steel Grade: B, Size: 4"-20", 114-508mm.
4. Seamless steel pipe for low temperature of -40C-101C, ASTM A333, Grade: GR. A, GR. 1, GR. 7, GR. 3, Size: 1"-24", 25-610mm.
5. Seamless steel pipe for Construction use: DIN2448/1629, DIN17175-1979, German standard, Grade: St37, St42, St52, St35.8, St45.8/1, Size: 1/2"-24", 21.3-610mm.
6. Structure used seamless steel pipe: GB/T8162-1999, Grade: 10#, 20#, 35#, 45#, 16Mn(Q345, ST52), Size: 21.3-720mm*1-70mm.
7. Liquid transport steel pipe seamless GB/T8163-1999, Grade: 10#, 20#, 16Mn(Q345), Size: 21.3-559*1-50mm.
8. Low or Medium pressure boiler seamless steel pipe GB3087-1999, Grade: 10#, 20#, Size: 21.3-508*1-45mm.



