Slate With low water absorption, easy installation, good acid resistance, efflorescence proof, heat-resistance 15 antifreeze, it is widely used in outdoor roofing, paver, 15 cladding. Size: 300*200mm, 400*250mm, 500*250mm, 600*300mm Thickness: 6mm, 8mm, 10mm or as per client's requirement Packing: Wooden crate Quantity: Huge supply is guaranteed Optional color: Black, green, blue 15 rusty yellow If you are interested in our 5, please feel free to contact us.