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Quick Details Standard: API, ASTM, GB, DIN, JIS, API 5L, ASTM A53-2007, ANSI A213-2001, ASTM A335M-2006, GB 5130, DIN 17175, JIS G3454-2007 Grade: Q195-Q345, 10#-45#, Q235, Q345, Q195, Q215, 10#, 20#, ...