Shanghai Buying Exhibition Co., Ltd is a professional organization which deals with hosting and organizing domestic and international exhibitions and expos, and is the one of the units having the qualification to host international exhibitions.

The 5th China (Shanghai) International Door Industry Exhibition 2011 is the greatest door industry exposition sponsored by China Timber and Wood Products Distribution Association, supported by China Timber and Wood Products Distribution Association Wooden Door Commission, Shanghai Pudong Branch of China International Trade Promotion, German wooden door Association, Japan Building Materials Association, Hubei Door industry association, Chongqing wood doors Industry Association and so on, together with Shanghai BoJun Exhibition Services Co., Ltd and the Top 30 Chinese wooden doors and many other star united. Chinese wooden doors of top 30 companies gather in the " Shanghai Expo " is the first time in the country, . The Shanghai Door Expo has also been appreciated at domestic and abroad, authorized, fully demonstrates the organizers to open up the domestic market and export trade integration specialty platform for participating enterprises