安全ヘルメットのハンサムな勤勉な専門家および外でクリップボードを保持するベスト,データ - ストックフォト＆画像

Laborer outside a factory working dressed with safety overalls equipment

Refinery engineer supervisor inspecting production of oil and gas for petrochemical industry.

An engineer man making notes on his clipboard in a factory. Concept of Industry

Worker with helmet working outside a modern factory

Portrait of smiling refinery worker in safety work wear standing by pipes in production oil factory.

Factory worker serviceman checking natural gas pipeline installations and using tablet computer.

Oil and gas refinery worker checking maintenance and production.