WQ590D,WQ590E;WQ620D,WQ620E;WQ690D,WQ690E;WQ700D,WQ700E；WQ800D,WQ800E;WQ890D,WQ890E;WQ900D,WQ900E

焊接结构用淬火加回火高强度钢板Quenched and tempered high strength steel plate for welding structure

 来源：ucyka 2009-11-11

焊接结构用淬火加回火高强度钢板Quenched and tempered high strength steel plate for welding structure

 

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