Stainless steel seamless pipe: 1. Standard:ASTM, GB 2. Grade: tp304,310s,316L, ... ,etc 3. Size:Thickness:1-25mm; O.D.:10-500mm Stainless steel seamless pipe:1. Standard: ASTM, GB2. Certification: ISO3. Shape: round4. Size ... , 202,301,304, 316, 316L, 310s,321,etc.6. Various pipes can be made according to your requriements.7. Surface finish ...