Steel pipe
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Carbon steel pipe
Grade of Materials:Q195， Q235， Q345;ASTM A53 GrA，GrB;STKM11，ST37，ST52，16Mn etc
Standard:API, ASTM, GB, API 5L, ASTM A106-2006,ASTM A53-2007, BS 1387, BS 1139, BS EN10219, GB 3087-1999, GB/T3901 etc.
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Carbon steel square pipe
Grade of Materials：Q195， Q235， Q345;ASTM A53 GrA，GrB;STKM11，ST37，ST52，16Mn etc
Standard：API, ASTM, bs, GB, API 5L, ASTM A106-2006,ASTM A53-2007, BS 1387, BS 1139, BS EN10219, GB 3087-1999, GB/T3901,EN, BS, JIS
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Seamless steel pipe
Grade of Materials：Q195， Q235， Q345;ASTM A53 GrA，GrB;STKM11，ST37，ST52，16Mn etc
Standard：API, ASTM, bs, GB, API 5L, ASTM A106-2006,ASTM A53-2007, BS 1387, BS 1139, BS EN10219, GB 3087-1999, GB/T3901,EN, BS, JIS