China Timber Distribution Association officially gave the title of "The Capital of Wooden Door in China" to Jiang Shan city of ZhengJiang province. In recent years, with the rapidly developped wood manufaction industry, there are already more than 1,170 manufacturers in Jiang Shan city with over 300,000 practioners. About 60 enterprises are majored in producing wooden door with an total annual output of 4 million sets. Its wooden door has occupied the markets of most of the areas in South China with an annual turnover of RMB 1.6 billion, and above 50% wooden doors are distributed to overseas markets.