WOLWA GROUP was established in 2005, which is a advanced technology equipment manufacturer. Its products include construction machinery\hydraylic component\mine equipment\pipe etc. We have 5 subsidiaries, include Wolwa construction machinery company\Dorson hydraulic component company\Guoneng structure part company\Wolwa pipe company\Jinsheng coal company. The capital of WOLWA GROUP exceeds RMB 2.5 billion. More than 800000 square meters international advanced workshop and more than 8000 square meters technology research center, produce more than 10000 complete machines and 20000 hydraulic components per year. Wolwa group has a provincial technology center and was the awarded of "Top 100 private enterprises in Shandong province", distinctive enterprise of Shandong, National advanced technology enterprise, which is also a mainly supported enterprise by Jining government. In the last 10 years, The aim of WOLWA GROUP is always "To be the leader of the construction industry, become a international famous brand" by keep on technological innovation. WOLWA brand series of wheeled excavator is applied to construction \port \ municipal works\park\environmental health\water conservancy\agriculture etc by it's intelligent \efficient and multifunction features. WOLWA GROUP occupies the top level of market share of Chinese private enterprises. Dorson company -- the advanced hydraulic component company becomes a very important partner of many famous companies like Sanyi\Zoomlion \Liugong\XCMG\Beijing \Sumitomo by the advantages of R&D. We got more than RMB 2.5 billion profit, taxes payment was more than RMB 3000 million. The main economic target were achieved double growth than 2013.