8 Years
Product Description 1. Grade: 10#-45#,16Mn,A53-A369,Q235,STB35, 2. Section Shape:Round 3. Standard: API, ASTM, BS, DIN, GB, JIS, API 5CT, API 5DP, API 5L, ANSI A182-2001, BS 1139, BS 1387, BS 3059-2, ...
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