GFC-180 Azimuth Circle Of Magnetic Compass

GFC-180 Azimuth Circle Of Magnetic Compass:

GFC-180 Azimuth circle can be used for CGF-180 reflector magnetic compass and most of the foreign magnetic compassed.It adopts fixed mode by using positioning centre hole,the diameter of inner hole is 8mm. The azimuth circle has the advantage of simple structure and convenient operation etc.