Siena town, called "Moon Harbour", Fujian historically one of the four major commercial port, is located southwest of the town today Longhai Siena Jiulong River downstream of the confluence Jianghai. From Siena town along Jiulong down to Haimen Island, this river, the shape of the moon named after the month in Hong Kong. Ming Dynasty is famous port of China's foreign trade, Taiwanese a cosmopolitan city, known as "Little Earth" reputation. "A party bustling town, harbor sails compete fat" is its vivid portrayal of history. Zhangzhou Longhai Siena old equipment market mainly engaged in diesel engines, motors, transformers, power distribution panel, machine tools and other used equipment.