... spraying. Fire Extinguisher BOV's Specifications: Name Bag on valve Other name Aerosol valve bag, Valve in bag Structure 1"Valve, Mounting ... gasket, Inner gasket, Stem, Spring, Housing, Bag-on-valve connector, Aluminum foil pocket(4 layers). Material Tin, Aluminium, ... Nylon, PE etc. ApplicationFire extinguishers and other aerosol products Main features 1)100% safe and protected 2)Long live aerosol ...