Brand independent, bridge above all course electronic devices (RADAR , SSB , GMDSS , VDR , S-VDR , VDR APT, GYROCOMPASS , AUTOPILOT , AIS , GPS , NAVTEX , EPIRP , SART , VHF RADIO , INMARSAT C , MINI M , ECHO SOUNDER , ANTENNAS MAGNETIC COMPASS) repair, maintenance, installation overseas education background and have a certificate made ​​by professional technicians.