... 100x, 125x, 400x, 500x, 1000x,1250x compact, elegant design Binocular metallurgical microscope (4X-B) The instrument is inverted metallurgical microscope ... 1 pcs3. micro slide φ10,φ20 1 pcs each 9. Binocular tube 1 cps4. Color Filter (yellow , green, Gray and ... owned by government (Shanghai Institute of Optics & Fine Mechanics, Chinese Academy of Science) Binocular metallurgical microscope (4X-B)