... .5mm Colors:rusty,black,grey High quality and competitive price natural slate tile,rusty slate 1. Material:slate quartzite,sandstone 2 ... , roofing slate, culture stone, wall slate, rust slate, slate panel, natural slate, roofing slate stone, roofing tile, slate flooring, floor slate ... and R&D department.3) Main Markets: More than 80% products of us are for export, we understand the quality is ...