Main Grades: TP317/L Production Standard:ASTM A312 ASTM A312... O.D.:10- ... 0.5-18mm Marine Pipes/TubesMain Grades:TP304/L/H,TP316/L/Ti,TP317/L,TP321/H,TP347H,TP310S;UNS S31803,S32205, ... pipeOutside Diameter:10-352mmWall Thickness:0.5-18mmSANTA PIPE INDUSTRY Co.Ltd is located in the beautiful coastal city of Dalian, which ... brand by advanced technology and senior management mode. TP317/L Marine Tube