Which microscope should be used to observe the 0.125 mm glass fiber (transparent) cylinder?
125 m yarn with 50~100 times is enough, we produce, it is sometimes convenient, can directly use 30~100 times the magnifying glass in the observation glass fiber; see scratches, bubbles and other defects, and for glass fiber coating agent, it is easy to see
0.125 mm yarn (125 microns) is very coarse, and ordinary fiberglass, 9 m or more, is roving;
