Three easily reached Electrical and Mechanical Co., Ltd. is a private enterprise gps monitor the end product of professional sales, the company has a stable vehicle terminal equipment, still maintain a stable working state in a hostile environment, integrated management of the company's satellite positioning system, "Integratedthe latest geographic information, satellite positioning, wireless communications and Internet technology set as a whole, for freight and passenger transport of dangerous goods, logistics, taxi, container, banking, insurance, public security, consumer goods, city permits, transportation, agriculture, forestry, medical, etc.all kinds of enterprises to provide professional GPS solutions.