Parts and accessories of lasers, optical devices and instruments of heading 9013, including laser housings, optics, mirrors and mounts.

Describe the part and fit; export of laser components may be controlled by power and wavelength. Measuring and survey instruments are precision goods: pack in padded cases with silica gel, state accuracy class, range and resolution, provide calibration certificates traceable to national standards, CE/BIS marks for electronic units, and keep lithium batteries under dangerous goods rules; some navigation and geophysical instruments are export controlled.