1.Seamless pipe series

2. Available standards

3. Duplex stainless steel (1)

4. Commonly used standard tolerance table

5. American Standard Dimensional Tolerance Table

6. American piping classification table

7. Daily Standard Pipe Grading Table

8. National Standard Pipe Grading Table

9. Comparison of domestic and foreign standards for stainless steel seamless steel pipes (reference)

10. Comparison of domestic and foreign standards for stainless steel seamless steel pipes (1)

11. Comparison of domestic and foreign standards for stainless steel seamless steel pipes (2)

12. Comparison of domestic and foreign standards for stainless steel seamless steel pipes (3)

13. Comparison table of chemical composition of commonly used stainless steel pipes (1)

14. Chemical composition comparison table of commonly used stainless steel pipes (2)

15.Chemical composition comparison table of commonly used grades of stainless steel pipes (3)