High Quality: The absorption is very good:0.18%. acid resistance, abrasion resistance and modulus of rupture are very good. If we can reach an aggrement,we can show you our test reports. This slate is good quality that passed GB/T 18600-2009, ASTM, BS EN 12326-1-2004. It has following characters --smooth surface --nice color --non-fading --durable. Our absorption is 0.18%, much lower than GB/T R1 grade 0.25% and ASTM 0.25%. Abrasion resistance is 0.016mm that is much lower than GB/T 0.35mm[...]

rusty slate,floor slate,floor tile,china slate[...]

china green slate,decorative slate,floor slate,wall slate and other usage[...]