Well known with the name of "Pearl Yanshan Mountain", Miyun Reservoir locates in Yanshan Mountain and crosses Chao river and Bai river. It is the largest artificial lake in Asia as well as the important civilian industrial water source for Beijing City.

 Recently, cooperated with Minyun government, Tian Ma Hui supplied and installed one TMHNPT4 3in1 indoor LED display in the hall of  Miyun Water Affairs Bureau with total screen area of 23.86 square meters. Depends on features of the clear pictures, rich color and wide viewing angle, this project successfully passed the acceptance of the expert group. The good quality and perfect service from Tian Ma Hui once again obtained the praise from the customer.