Defense and Law Enforcement and Security and Safety Equipment and Supplies, Explosive materials, Propellants, Explosives, Ammonium nitrate explosives, Nitroglycerin powder explosives, Pyrotechnics, Dynamite, Explosive cartridges, Propellant explosives, Explosive charges, Plastic explosives, Aluminized explosives, Igniters, Chemicals including Bio Chemicals and Gas Materials