Rusty Culture Slate for Exterior Wall Cladding (Ledge Slate Stone) (YYL) Natural Slate is particularly suitable as a roofing material as it has an extremely low water absorption index of less than 0.4%, making the material waterproof. In fact, this natural slate, which requires only minimal processing, has the lowest embodied energy of all the roofing materials. Natural slate is used by building professionals as a result of its beauty and durability. Slate is incredibly durable and can last several hundred years, often with little or no maintenance. Its low water absorption makes it very resistant to frost damage and breakage due to freezing. Natural slate is also fire resistant and energy efficient 1. Usage: Slate Corner stone, Wall cladding stone, wall decoration, hot sale high quality natural stone, stone cladding, slate panels, walling slate, natural slate, inside or outside wall decoration, culture stone, walling slate, wall stone, wall tile, wall brick, slate corner 2. Regular Size: 15*30cm, (45+15)*15cm, or as customer's requirement Normal thickness: 1.5-3.5cm, 1-2.5cm, or as customer's requirement 3. Available Color: Green, Black, Rusty, Yellow, multi brown, red Available Shape: Z shape, rectangle 4. Processing: Bottom and four edges machine cut, natural surface, natural corner 5. Other details you may want to know. Delivery Time: 15days after deposit per container Payment term: TT( 30% deposit, the balance against the copy of B/L ) or L/C at sight, Loading Port: China port. Others: Samples for free, but transportation charges is paid by receiver.