door lock cylinder and keys on slate stone, macro, top view, and on white background.

backgrounda electronics disassembly background mechanical protection technology anschluss apartment equipment locksmith resistant cylinder isolated lighting hardware material metallic security locking drawers machine vehicle firearm bearing closeup keyhole protect device weapon engine gadget camera design detail estate handle object safety secure silver system unlock slate stone macro white doors wheel light board brass house ideas metal plugs shiny steel door lock keys view used iron hand core