1), Grey/red granite quarry 2), good quality and competitive price 3), sincere service 4), strong ... etc. 5. Other material: Granite, marble, sandstone, slate, Please visit our website to see more. 6. Quality Control: ----1). Polished degree: ... trading. Our main stone materials are granite, limestone, basalt, sandstone, and celestite. Our products include all kinds of kerbstones, slab, tiles, walls, ...