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Electronic technician worker man wearing mask, skilled control system, control cabinet, station, signal tower. Telecom uses a laptop to check the telecommunication circuit board system.
Illustration of pedestrian traffic light
peephole or peep hole in metal door
Man looking at the blackboard
under construction ribbons over black background vector illustration
Electronic worker man wearing mask, skilled control system, control cabinet, station, signal tower. Telecom uses a laptop to check the telecommunication circuit board system.

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