Made of sand, stone, cement and industry waste residue as main raw material, manufactured elaborately by adopting international advanced production technology, the product has several building functions, such as light weight, weight bearing, thermal insulation, decoration, sound absorption, etc. and can be widely used in wall, ground, landscape, municipal construction projects and construction of hydraulic engineering. The company is the only enterprise in the industry in Longkou that has been certificated by the New Wall Leading Group Office of Shandong Province.