This document applies to the design and installation of natural smoke and heat exhaust ventilators (NSHEVs) for spaces from which smoke is extracted vertically by thermal buoyancy via the roof in the case of single-storey buildings and via the uppermost
18-08-2024
21
هندسية
نظم الأمان
أجهزة
415 ج.م.
ISO: 21927-4:2019
متبناه
غير الزامى
13.220.20