Factory engineer inspecting laboratory pipeline during work
Factory engineer inspecting laboratory pipeline during work
Engineering supervision. Service engineer at heat electropower station. Worker in yellow hard hat near heating main pipeline
Service engineer at heat electropower station. Worker in yellow hard hat near heating main pipeline. Engineering supervision
Repairman near heating main pipeline at heat station. Engineering supervision. Service engineer at heat electropower station. Worker in yellow hard hat near heating main pipeline of heat station
Electronics engineers working in lab. Engineers sitting at the table and working on the computer
Repairman near heating main pipeline at heat station. Engineering supervision. Service engineer at heat electropower station. Worker in yellow hard hat near heating main pipeline at heat station