Fire alarm/smoke Evac system test School atrium 76,000 CFM exhaust, pressurization fans.
NIC’S - SYSTEMS & ELECTRIC
0:00 / 0:00
Fire alarm/smoke Evac system test School atrium 76,000 CFM exhaust, pressurization fans.
9 432 просмотра · 3 года назад
NIC’S - SYSTEMS & ELECTRIC
66,7 тыс. подписчиков
