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Industrial factory worker, Engineer staff working in food and drinks factory, Control check quality condition of liquid pipe supply in plant.
The air conditioning and heating control panel for the apartment and office is located on a white wall.
Air conditioning technicians install new air conditioners in homes, Repairman fix air conditioning systems, Male technician service for repair and maintenance of air conditioners
Hands of lawyer pointing at paper for businessman signing contract. Solicitor, legal advisor helping mature client to fill up document, medical insurance form, will, affixing signature. Paperwork
Technician holding manifold gauge measuring tool on fan for check pump filling home air conditioner and checking refrigerant and maintenance heat fix repair and clean outdoor air compressor unit.

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