[video_lightbox_youtube video_id=”xxOsxtOtzDc” width=”640″ height=”480″ anchor=”http://oakridgebellows.com/wp-content/uploads/2014/08/2-ply-testable-bellows-1.jpg”]Many users such as power plants and refineries have expansion joints with 2-ply testable bellows. These redundant bellows are often overlooked during […]