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NFPA 409 飞机修�库标准
日期:2012-02-09 15:42
t hangars.
Only in the updated 2011 edition
Updated references
Expanded requirements for protection of steel columns per NFPA 13 and NFPA 15
Revised requirements for draft curtains in Group I and II hangars
Updated requirements for sprinkler protection in Group III hangars
Expanded guidance on freeze protection
Editorial changes were also made to improve readability and usability. (Softbound, 39 pp., 2011)


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