Lecture 36) Emergency procedures for alarm valve head opening / What to do when water pours out f... 소방점검TV 5 years ago Play Download
Lecture 38) Mastering Pre-action Valves 1 / Pre-action sprinkler system schematic and operation, ... 소방점검TV 5 years ago Play Download
제21강 스프링클러설비 4(p 432 69번 개정 : 유수제어밸브(유수검지장치, 일제개방밸브)의 최고사용압력은 1.2MPa 이상이어야 한다.) ABC소방 5 years ago Play Download
[Fire Electrical Facilities] 5 Ways to Operate a Pre-action Valve in a Pre-action Sprinkler System 물뿜는하마 5 years ago Play Download
