English version machine-translated from the Vietnamese original — under review.
https://starduct.vn/van-ngan-chay-fdmfd-c-134
NSCA is the first manufacturer in Vietnam qualified to supply insulated fire dampers (EI) and non-insulated fire dampers (E) with fire resistance ratings of 120, 90, 60, 45 and 30 minutes, the highest being 120 minutes. Sizes range from the smallest to the largest possible, according to the design requirements of residential and industrial projects, in both motorised and thermal fusible link versions.
