We are one of the carbon seamless steel pipes exporters in China, and we mainly export carbon seamless steel pipes as belows:

1. 1/2"-24" (21.3mm-609.6 mm) ASTM A106/A53 Gr. B
2. 1/2"-24" (21.3mm-609.6 mm) DIN1 7175 DIN1629 DIN2448
3. 1/2"-24" (21.3mm-609.6 mm) API 5L Gr.B ASME B36.10

If you have any needs about this please don't hesitate to contact with me. Send me your details,and I will give you best prices and services. Hope we can become good business fellows and good friends!