GM-50磁强仪，磁强计 磁强仪GM-5... 南京毫特科技有限公司

p1Src=//y1.yzimgs.com/uploads_old/400614/2014051213154655_old.jpg&p2Src=//y1.yzimgs.com/uploads_old/400614/2014051213154655_old_1.jpg&p3Src=//y1.yzimgs.com/uploads_old/400614/2014051213154655_old_2.jpg"