| Specification | 3PE Coating: 3PP Coating; Standard: Out Diameter; API 5L: 219.1～273.1; 274.0～320: +2.4mm, -0.8mm; 323.9～457: +2.4mm, -0.8mm; 508: +2.4mm, -0.8mm; 559～610: +2.4mm, -0.8mm; Standard: Grade; API 5L: A; B: 508～610; X42-X80: 508～610; Standard: Class |
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