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sjx14023 发表于 2016-9-6 11:20:20

NFPA. 13R Standard for the Installation of Sprinkler Systems in Low-Rise Resid

NFPA. 13R
Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupancies
2013 Edition

admin 发表于 2016-9-6 17:05:19

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