2008资源列表
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[国外标准] DIN 875-2-2008 Geometrical product specifications (GPS) - Squares 90° - Part 2 Granite squares 90
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[国外标准] DIN 678-2-2008 Envelopes - Part 2 Envelopes for processing in enveloping machines size C6 to C4
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[国外标准] DIN 1910-100-2008 WelDIN g and allied processes - Vocabulary - Part 100 Metal welDIN g processes wit
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[国外标准] NFPA 497-2008 Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and