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| 1. Longitudinal Seam High Frequency Welded Pipe (ERW) |
| Item |
Standard |
| Line Pipe |
ISO3183-1,APL-5L |
| Oil Casing and Tubing |
API-5CT |
| Pipe for Gas,Oil,Liquid Transport and Structural Pipe |
ISO559
ASTMA53/A120/A135/A252/A500
BS1387,BS3601,BS4568
JIS-G3441/G3444/G3445/G3452/G3454
DIN17172 |
| Square or Rectangular Pipe |
ASTMA500,DIN59411 |
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| 2. Longitudinal Seam Submerged-Arc Welded Pipe (LSAW) |
| 3. Spiral Seam Submerged-Arc Welded Pipe (SSAW) |
| Item |
Standard |
| Line Pipe |
ISO3183-1,APL-5L |
| Pipe for Gas,Oil,Liquid Transport and Structural Pipe |
ISO559
ASTMA53/A252/A134/A139/A211/A381
BS1387,BS3601,BS4568
JIS-G5525/G3444/G3457
DIN17172 |
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| Other standard or material available on request |
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