XQ71B0 is used mainly for making micro-nano fiber in the field of optical fiber sensing, which utilize high-precision lead screw, guide rail and other core components to ensure the tapering accuracy of micro-nano fiber. The cone diameter of tapering parameters can be less than 1m and cone length can be adjusted from 1 to 10cm. It is very suitable for scientific research of universities and other fields. XQ71B0 is stable, reliable and easy to use.