Guangzhou Electronic Technology Limited North letter of products has been widely used in telecommunications, mobile, Unicom, China Netcom, CRC, satellite communication and a number of operators, while widely used in electricity, radio and television, factories, public security, oil, factories, mines, the port, aviation, universities, banks, water conservancy, transportation, military and other specialized networks for disaster, disaster relief and emergency services. The company introduced strict total quality management, the establishment of a sound quality assurance system that the company has a good technical support and comprehensive after-sales service, maintained a quality first, service first, the idea of user-orientated sales, and many established long-term users friendly relations of cooperation.