... ,12V/24V,JGK-505valve with aluminum coil or JGK-502 valve with copper coil ,Dual tone electric air horn ... 12V or 24V,JGK-505valve(with aluminum coil)or JGK-502 valve(with copper coil) ,flat base cover,Dual tone ... product, please check it, thank you! Q:I am a reseller,I would like to buy many pieces of ... 12V/24V,JGK-505valve with aluminum coil or JGK-502 valve with copper coil ,Dual tone electric air horn ...