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.

Engineers work inside a large steel pipe, building a tunnel for an oil, gas, and fuel pipeline. - Stock Photo - Images

Engineers collaborate inside a massive steel pipe, constructing a tunnel for an industrial pipeline transporting oil, gas, and fuel.

by
by
by
by
by
by