<a href="http://RAILTRAINS.INFO/article.php?article=heavy-equipment-transporters" rel="nofollow">Heavy equipment transporters</a>    
Excavators- This kind of construction machine is an improvement on the steam shovel and consists of a long arm or boom with a bucket on the end and a cab that sits on either a stationary or mobile base. It is used for digging trenches and holes as well as various lifting functions. It comes in various sizes with differing capabilities of lifting or earth movement.