Supporting wharf project for China Railway South engineering equipment manufacturing base is located in the south of Maan island, Cuiheng district, Zhongshan city, Guangdong province. the base capacity include: annual assemble 400,000 tons large steel box beam, manufacture 450,000 set of engineer machinery and marine engineering equipment, prefabricate concrete product 1,000,000 tons(400,000 m3). Meanwhile can provide such service(berth, support, repair, maintain and renew) for ships of China railway harbor and channel engineering bureau. The project is the base supporting wharf project, according to manufacturing requirements, arrange 9 berths and 999m usage shoreline, the project total investment is  ￥730,000,000.