What grade is Spain's Valdeorras Casayo Slate? Ask Other Questions
Spains Valdeorras Casayo Slate is not graded in the traditional sense. It is a type of slate stone used in construction and architecture, particularly for roofing and wall cladding. The quality and suitability of the stone for specific applications are determined by factors such as color, texture, durability, and thickness, rather than a specific numerical grade.