... ,marble,tile,polished tile,cement floor,wooden floor,furniture,clothes,automobile,cultural relics,etc,;4) ... floor when flowerpot,metal drum,iron nail,wooden plate and so on are placed on ... on tiles,marble or cement ground and wooden floor when shelves in stores and hotels ... antique,rare porcelain and tiles that can't be washed with strength.6)Especially for stain and rust on wooden floor and furniture ...