Shandong Gaotang Liangyou Granite & Machinery Co.,Ltd locates in Liaocheng City, started to manufacture granite products and mechianical products from 2009. Our product line include granite, grey & ductile cast iron, sand casting & lost wax casting, aluminium casting,machining.We have strong capacity to make production according to customer's requirements with competitive prices. Also we apply the strictest quality control procedures during the production processes to assure customers' quality. Part of our products are directly exported USA,Italy, France and Korea etc. Welcome to visit us.