We privide the General Structural Seamless Steel Tubes:

Size:
Outer Diameter: 5mm-115mm
Wall thickness: 1mm-11mm
Length: 3000mm-12000mm(we can do make the length as the customer requires
Standard: ASTM EN DIN JIS &GB
We can also provide specifications that the customer requires

If you have interest in us, or want to get more information from us, pls feel free to contact me. And we will be your best stainless steel pipe supplier in China.