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Dimension: 1/2inch - 20inchSteel Grade:       ASTM A53/A106: Grade A, Grade B      ASTM A252: Grade 1, Grade 2, Grade 3      ASTM A333/A334: Grade 1-11      ASTM A423: Grade 1, Grade 2      ASTM A501: Grade A, Grade B      API 5L: Grade A/B, X42-X70(PSL1, PSL2)      API 5CT: J55, K55, N80, L80, C90, P110, Q125
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