Hi Carol,

Thank you for your post. 

The Imperial data set is built with USA contractors in mind, the manufacturer specific content is built from the actual manufacturers data sheets, type in FOLDERS and browse the tree structure you will see the manufacturers names.

The Metric content is built from our knowledge of the content available in the UK and other metric regions, again to manufacturers data sheets, browse the tree structure to see them.

Please keep us posted and let us know how this worked out or if there are any questions.  Thank you and we look forward to your reply update. 

Jonathan M.
Technical Support Specialist