UDCGBPGB50414-2007 Code for Design of Fire Protection and Prevention for Iron Steel Metallurgy Enterprises 2007-04-13 2008-01-01 I 629 GB50414-2007 2008 1 1 4.3.24.3.34.3.45.2.25.3.16.6.16.6.416.7.286.7.36.7.66.8.446.9.36.10.26.10.36.10.46.10.56.11.416.12.16.13.16.13.39.0.510.3.610.4.3 2007 4 13 I [2004]67 10 A B C 7 100176 II III1 12 23 .34 .
