Seamless steel pipe Features: 1) Pipe Diameter: 1/8" - 24" 2) Thickness: 0.5 - 30mm 3) Steel Grade: API A53 Gr.B, A106Gr.B, API 5LB, X42, X46, X52 4) Standards: ASTM, DIN, JIS, GB 5) Surface: Oiled or black painted to prevent rust 6) Marking: as per customer's requirement 7) Packing: Bundles or seaworthy wooden cases Packing: In bundle/in loose