Zhong Tai Sheng Rui (ZTSR) has been concentrating in central air conditioning equipments, FRB equipments and other related accessories for years within China's mainland. In the part few years, we kept playing a successful role of agent between the Investors and the product manufactures. We have built a long term strategic relationship with many manufactures in central air conditioning industry such as Huaneng, Grad, Climaveneta, Dunham-Bush and so on. It is quite clear that in the purpose of price protecting, most manufactures would not like to response inquiry from the buyers directly. This is caused by the pseudo inquiry which is from actually another manufacturer. In this explosive competitive situation, a reliable and responsible agent appears significant important in the trading business. That's why ZTSR is here. In 2011, ZTSR decides to provide the services internationally,