longitidinal-seam steel pipe *******0mm. thickness ***0mm. Spiral
steel pipe: **9mm****0mm, thickness***0mm seamless pipes: small
pipes 1/4\'\' **2\'\' big pipes *4\'\'**4\'\' Standard: ASTM A*3,
ASTM A**6, GB/T***3, ASTM A**6/A*3/API 5L Steel Grade: Gr.B, X*2,
X*2, X*0, X*5, X*0 Surface: oiled or black painted to prevent rust
Marking: as per customer\'s requirement inner packing: Caps on two
ends of every pipe outer packing: according to customer\'s requests