Bag on valve: 1.100% safe and protected 2.Long live aerosol. ... empty. 4.No need for flammable propellants Bag on valve Specifications: Name Bag on valve Other name Aerosol valve bag, Valve in ... , Mounting Cup, Outer gasket, Inner gasket, Stem, Spring, Housing, Bag-on-valve connector, Aluminum foil pocket(4 layers). Material Tin, Aluminium ... Less noise when spraying CET ISO 9001:2000 AEROSOL BAG ON VALVE