Material Standard : ASTM / ASME A 53 GR. A, B, ASTM / ASME 106 GR. A, B, C, API 5L GR. B, API 5L X 42, X 46, X 52, X 60, X 70, ASTM / ASME A 691 GRA, B, C
ASTM / ASME A 53 GR. A, B, ASTM / ASME 106 GR. A, B, C, API 5L GR. B, API 5L X 42, X 46, X 52, X 60, X 70, ASTM / ASME A 691 GRA, B, C
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