Promat's revolutionary technology provides Blast Proof Doors used in high security areas like strong rooms, battery rooms and transformer rooms. Promat is the only company providing genuine blast rated doors. Features: Perfectly polished Optimum finish Robustness Other Details: The cement core and steel are mechanically bonded to each other. The PROMATECT-S systems have been extensively used for military developments, in commercial, petrochemical and pharmaceutical facilities and at various rail & metro projects.