Yes, Chinas Nayong Black Slate can be used outdoors. It is a type of natural stone that is durable, weather-resistant, and suitable for outdoor applications. It can be used for various outdoor projects such as cladding, paving, roofing, and landscaping. However, it is always recommended to consult with a professional before finalizing the use of any specific stone for outdoor applications to ensure it is suitable for the intended purpose and climate conditions.