steel

This clips begins with a CU on a doorknob, and then shows the…

This clip begins on a CU of a history book on architecture with a hand…

Shots of a foundry in Ohio. Exterior of buildings. CU of man pouring…

Machine pouring coal into train cars, factory worker pushing fuel line…

Aerial shot of steel factory, inside factory workers watch sparks…

A man’s hand points to some braze welding equipment displayed on a…