Carbon steel H beam Feb. 27, 2011 1:39:43
1.Products: Steel H beam.
2.standards of steel h beam: JIS GB( T11263-1998) , JIS, ASTM, HEA
3.Grade of steel h beam: Q235B, SS400, Q345B, A36, GR50, S235JR, S275JR...
4.Techinique of steel h beam....
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