Qingzhou Yongsheng Sand-digging Machinery Co., Ltd. (former Qingzhou Yongsheng Dredging Machinery Co., Ltd) established in 1990, it is the first professional manufacturer which develops and produces sand-digging machinery, sand making machinery, dredging machinery, .mineral.processing machinery in Qingzhou. Since 1990, we have been the scientific and technological innovation as new concept, and constantly improving the product and innovative. Great satisfaction and continual improvement of customer demand.leaders of the company place emphasis on the construction of research. We set up Shandong Weifang Sand Mine Equipment Development Research Institute in 2004, and established good business relationship with the national every big scientific research. At present there are 5 senior engineer and 12 professional . D staff, they can rapidly works out the reasonable and feasible plan according to the customer job site and the customer's requirements. The developed new type sand making machinery has been used by the state's key projects in Qingdao - Huangdao Bridge project. Tin ore equipment has been used by Indonesia clients and received good economic benefit. The new developed large, medium and small sand-digging ship were widely used for river dredging by Nigeria clients and domestic Products of the company involve in Sand Dredgers, Sand Sieving Ships, Sand Makers, Sand Suction Machine, Iron Powder Ships, Dry Concentrators, Ore Concentrators, Gold Pannig Machines, Sand Washers, Stone Washers, Crusher, Transport Ship, Diselting Ships, Dredgers, Dredger Accessories, a dozen of series more than 80 kinds of products for you to products quality is the life of enterprise. We have high standard requirements of product quality, the company introduce large boring machine, CNC machine tools, plasma cutting machine dozens of equipments. Before the products leave factory, we have a rigorous test, experiment for all products to ensure that every products to the customer ar