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Hot rolled weathering steel spiral carbon pipe, US $ 709.63 - 756.66 / Ton, ASTM, GB, API, JIS, DIN, ASTM A106-2006, ASTM A53-2007, ASTM A671-2006, GB 5310-1995, GB/T 8163-1999, GB/T 8162-1999, API 5CT, API 5L, JIS G3454-2007, DIN 1630, JIS / ASTM/ EN/ GB, 5 - 30 mm, Round.Source from Shanghai Juqin