直縫鋼管,螺旋焊管,鍍鋅焊管,大口徑焊管,厚壁焊管,厚壁鋼管,焊接鋼管,16mn焊管,大口徑厚壁焊管等等
產(chǎn)品材質(zhì)規(guī)格價(jià)格
大口徑焊管Q345B176*153654
大口徑焊管Q345B195*163874
大口徑焊管Q345B200*253294
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