Title: Shaanxi Huanyu Stone Co., Ltd. Description: specializes in processing and exporting slates. Our own slate quarry is in southern Shaanxi province,which is famous for best quality roofing slates with a national sales network.The slate quarry is with best quality blue gray and blue black slates. Tags: Roofing slates flooring slates Category: Shaanxi URL: http://www.shaanxislate.com