Engineers work inside a large steel pipe, building a tunnel for an oil, gas, and fuel pipeline.
Engineer checks water tank valves, equipment related to hot water production pipelines.
Gas pression gauge meters on gas pipeline. Gas extraction, production, delivery and supply concept.
Workers inside a big steel pipe building a pipeline for oil, gas, and fuel at an industrial site.
Engineers work inside a large steel pipe, building a tunnel for an oil, gas, and fuel pipeline.
Workers inside a big steel pipe building a pipeline for oil, gas, and fuel at an industrial site.
Engineer checks water tank valves, equipment related to hot water production pipelines.
Workers inside a big steel pipe building a pipeline for oil, gas, and fuel at an industrial site.
Engineers work inside a large steel pipe, building a tunnel for an oil, gas, and fuel pipeline.
Engineers work inside a large steel pipe, building a tunnel for an oil, gas, and fuel pipeline.
Workers inside a big steel pipe building a pipeline for oil, gas, and fuel at an industrial site.
Workers inside a big steel pipe building a pipeline for oil, gas, and fuel at an industrial site.
Lower view of engineer or factory technician worker team stand under petrochemical gas pipeline
Workers inside a big steel pipe building a pipeline for oil, gas, and fuel at an industrial site.
Engineers work inside a large steel pipe, building a tunnel for an oil, gas, and fuel pipeline.
Worker building pipeline system for low temperature maintenance. Preparing of outdoor skating rink
Welder is welding steel pipe for use in improving oil pipeline systems work in tanker ship
Workers inside a big steel pipe building a pipeline for oil, gas, and fuel at an industrial site.
Oil and gas industrial refinery at night, Oil and gas refinery petrochemical plant pipeline steel.
Engineers work inside a large steel pipe, building a tunnel for an oil, gas, and fuel pipeline.
Side view of two engineer or factory technician workers stand beside petrochemical gas pipeline
Oil and gas industrial refinery at night, Oil and gas refinery petrochemical plant pipeline steel
Oil and gas industrial refinery at night, Oil and gas refinery petrochemical plant pipeline steel
Workers inside a big steel pipe building a pipeline for oil, gas, and fuel at an industrial site.
Close up two engineer or factory technician workers stand beside petrochemical gas pipeline
Oil and gas industrial refinery at night, Oil and gas refinery petrochemical plant pipeline steel
Welder is welding steel pipe in outdoors workshop for use to improving oil pipeline systems work
Aerial top view of an oil refinery plant with storage tanks and pipeline steels during nighttime
Oil pipeline system on the floor in front of white storage fuel tank in industrial refinery yard are
Engineers work inside a large steel pipe, building a tunnel for an oil, gas, and fuel pipeline.
