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oil pipe, US $ 610 - 820 / Ton, bs, JIS, GB, DIN, ASTM, API, BS 1387, JIS G3463-2006, GB 5310-1995, GB/T 9711.1-1997, DIN 17175, ASTM A106-2006, ASTM A333-2005, ASME B36.10M-2004, API 5CT, API 5L, 10#-45#, Cr-Mo alloy, Mn-V alloy, 15NiCuMoNb5, MO, A53-A369, API J55-API P110, STPA22-STPA26, Q195-Q345