... steel seamless pipesStandardGB/T14975, GB/T14976, GB13296-91, GB9948 ,ASTM A312, ASTM A213, ASTM A269, ASTM A511,JIS349,DIN17456, ASTM A789 ... ) x MAX 13000mmToleranceunder the ASTM A312 A269 A213 standardunder the ASTM A312 A269 A213 standardunder the ASTM A312 A269 A213 standardSurface180G, 320G Satin ...