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Chinese Standard: GB/T 12688.9-2011
$10
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Chinese Standard: GB/T 12689.1-2010
$10
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Chinese Standard: GB/T 12689.10-2004
$10
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Chinese Standard: GB/T 12689.11-2004
$10
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Chinese Standard: GB/T 12689.12-2004
$10
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Chinese Standard: GB/T 12689.2-2004
$10
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Chinese Standard: GB/T 12689.3-2004
$10
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Chinese Standard: GB/T 12689.4-2004
$10
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Chinese Standard: GB/T 12689.5-2004
$10
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Chinese Standard: GB/T 12689.6-2004
$10
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Chinese Standard: GB/T 12689.7-2010
$10
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Chinese Standard: GB/T 12689.8-2004
$10
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Chinese Standard: GB/T 12689.9-2004
$10
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Chinese Standard: GB/T 12690.1-2015
$10
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Chinese Standard: GB/T 12690.10-2003
$10
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Chinese Standard: GB/T 12690.11-2003
$10
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Chinese Standard: GB/T 12690.12-2003
$10
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Chinese Standard: GB/T 12690.13-2003
$10
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Chinese Standard: GB/T 12690.14-2006
$10
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Chinese Standard: GB/T 12690.15-2018
$10
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Chinese Standard: GB/T 12690.16-2010
$10
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Chinese Standard: GB/T 12690.17-2010
$10
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Chinese Standard: GB/T 12690.18-2017
$10
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Chinese Standard: GB/T 12690.19-2018
$10
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Chinese Standard: GB/T 12690.2-2015
$10
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Chinese Standard: GB/T 12690.29-2000
$10
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Chinese Standard: GB/T 12690.3-2015
$10
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Chinese Standard: GB/T 12690.4-2003
$10
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Chinese Standard: GB/T 12690.5-2017
$10
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Chinese Standard: GB/T 12690.6-2017
$10
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Chinese Standard: GB/T 12690.7-2003
$10
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Chinese Standard: GB/T 12690.8-2003
$10
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Chinese Standard: GB/T 12690.9-2003
$10
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Chinese Standard: GB/T 12691-1990
$10
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Chinese Standard: GB/T 12692.1-2010
$10
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Chinese Standard: GB/T 12692.2-2010
$10
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Chinese Standard: GB/T 12692.3-1990
$10
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Chinese Standard: GB/T 12692.4-1992
$10
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Chinese Standard: GB/T 1270-1996
$10
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Chinese Standard: GB/T 12701-2014
$10
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Chinese Standard: GB/T 12703.1-2008
$10
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Chinese Standard: GB/T 12703.2-2009
$10
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Chinese Standard: GB/T 12703.3-2009
$10
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Chinese Standard: GB/T 12703.4-2010
$10
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Chinese Standard: GB/T 12703.5-2010
$10
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Chinese Standard: GB/T 12703.6-2010
$10
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Chinese Standard: GB/T 12703.7-2010
$10
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Chinese Standard: GB/T 12704.1-2009
$10
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Chinese Standard: GB/T 12704.2-2009
$10
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Chinese Standard: GB/T 12705.1-2009
$10
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Chinese Standard: GB/T 12705.2-2009
$10
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Chinese Standard: GB/T 12706.1-2020
$10
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Chinese Standard: GB/T 12706.2-2020
$10
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Chinese Standard: GB/T 12706.3-2020
$10
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