CTR Manufacturing Industries Ltd. Manufactures Rim Seal Fire Protection System for Petroleum Storage Tanks. CTR Manufacturing Industries Ltd. Supplies Engineering and Electronic products. The Rim Seal Fire Protection System for Petroleum Storage Tanks automatically senses and extinguishes a rim seal fire. This system is designed to automatically detect and extinguish fire at the incipient stage. The system is mounted on the roof of the tank. The system can be installed while tank is in service. The Rim Seal Fire Protection System for Petroleum Storage Tanks works on principle of arresting chain reaction non-electrically operated; remote surveillance facility; High reliability assured; no water supply needed; modular design; unlimited shelf life of CF3I.