Electrotechnical and electronic components, namely, semiconductors, image sensors, microprocessors, signal processors, A/D converters, D/A converters, multipliers, integrated circuits, amplifiers other than sound amplifiers, diodes, transistors, rectifiers, CMOS circuits, thyristors, power supplies; scientific, surveying, photographic, cinematographic, optical, measuring, signaling and checking apparatus and instruments, namely, cameras, optical cables, distance measuring apparatus, flashligh...