Fixed firefighting systems - components for sprinkler and water spray systems - wet alarm valve assemblies 固定灭火系统.喷洒器和喷水系统元部件.报警湿阀组件
3.
Fixed firefighting systems - components for sprinkler and water spray systems - part 2 : wet alarm valve assemblies 固定消防系统.洒水器和喷水系统用元件.第2部分:湿式报警阀组件
4.
Fixed firefighting systems - components for sprinkler and water spray systems - part 2 : wet alarm valve assemblies ; german version en 12259 - 2 : 1999 a2 : 2005 固定灭火系统.喷头和喷水系统元部件.第2部分:报警湿阀
5.
Fixed firefighting systems - components for sprinkler and water spray systems - part 2 : wet alarm valve assemblies includes amendment a1 : 2001 ; german version en 12259 - 2 : 1999 a1 : 2001 固定灭火系统.喷头和喷水系统元部件.第2部分:报警湿