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  低合金高强度结构钢(GB/T1591-19... vily 0/1678 2007-10-19 10:05:46 | 暂无回复
  碳素结构钢(GB/700-1999) vily 0/1519 2007-10-19 10:05:15 | 暂无回复
  碳钢 vily 2/1811 2007-10-19 10:04:38 | vily
  钢的分类方法 vily 0/1540 2007-10-19 10:03:07 | 暂无回复
  GB/T17396-1998(液压支柱用热... vily 1/1627 2007-10-19 10:01:46 | vily
  GB18248-2000(气瓶用无缝钢管) vily 0/1726 2007-10-19 10:00:01 | 暂无回复
  GB9948-1988(石油裂化用无缝钢管... vily 0/1604 2007-10-19 9:59:31 | 暂无回复
  GB1479-2000(高压化肥设备用无缝... vily 0/1663 2007-10-19 9:58:14 | 暂无回复
  GB5310-1995(高压锅炉用无缝钢管... vily 0/1462 2007-10-19 9:57:55 | 暂无回复
  GB3087-1999(低中压锅炉用无缝钢... vily 0/1660 2007-10-19 9:57:26 | 暂无回复
  GB/T8163-1999(输送流体用无缝... vily 0/1590 2007-10-19 9:57:05 | 暂无回复
  GB/T8162-1999(结构用无缝钢管... vily 0/1619 2007-10-19 9:55:35 | 暂无回复
  GB/T3639-1983(冷拔或冷轧精密... vily 0/1556 2007-10-19 9:54:36 | 暂无回复
  GB/T8713-1988(液压和气动筒用... vily 0/1681 2007-10-19 9:53:13 | 暂无回复
  GB/T3094-1986(冷拔无缝钢管异... vily 0/1466 2007-10-19 9:52:44 | 暂无回复
  GB13296-1991(锅炉、热交换器用... vily 0/1773 2007-10-19 9:52:11 | 暂无回复
  GB/T14975-1994(结构用不锈钢... vily 0/1623 2007-10-19 9:51:25 | 暂无回复
  Cr5Mo无缝管合金管合金钢管材质耐最高温... vily 0/1631 2007-10-19 9:48:36 | 暂无回复
  钢管的钢管外形尺寸术语 vily 0/1581 2007-10-19 9:46:13 | 暂无回复
  UOE钢管强度各向异性对抗压强度的影响预测... vily 0/1913 2007-10-19 9:45:32 | 暂无回复
  热镀锌和冷镀锌的区别 vily 0/1591 2007-10-19 9:45:00 | 暂无回复
  低压流体焊管和直缝焊管 vily 0/1537 2007-10-19 9:44:32 | 暂无回复
  氧气瓶用无缝钢管知识大全 HP 1/1582 2007-10-11 20:31:23 | gloria
  氧 气瓶 生产流程 HP 0/1753 2007-10-10 11:45:01 | 暂无回复
  GB/T14976-1994(流体输送用不... vily 2/1725 2007-9-14 16:36:14 | vily
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