GFC-180 Azimuth Circle of Magnetic Compass:
GFC-180 Azimuth Circle of Magnetic Compass Introduction
GFC-180 azimuth circle can be used for CGF-180 reflector magnetic compass and most of the foreign magnetic compasses. It adopts fixed mode by using positioning center hole, the diameter of inner hole is 8mm. The azimuth circle has the advantages of simple structure and convenient operation etc.