seamless pipe: ASTM A312, A213, A269, A511, JIS, G3459, G3463, G3468, GOST, 9941-81, DIN 17440, DIN 17224, ... 0.5-35 Detailed Product Description, seamless pipe: Products Standards ASTM A312, A213, A269, A511, JIS, G3459, G3463, G3468, GOST, 9941-81 ... need any help, pls contact my Trade Manager directly: cn200081287 stainless steel pipe