النص المقترح
American Table of Distances, 1991 edition, published by the Institute of Makers of Explosives
National Fire Protection Association 10: Standard for Portable Fire Extinguishers, 2013 edition
American Table of Distances, 1991 edition, published by the Institute of Makers of Explosives
National Fire Protection Association 10: Standard for Portable Fire Extinguishers, 2013 edition