yes.  the majority of our customers have critical requirements for maintaining heating and cooling systems in their respective industries.  malfunction or failure of these systems often results in loss to their businesses.  because of these critical needs they must carefully select a vendor they can rely on to maintain equipment regularly and make repairs immediately.  this distinction and our ability to meet these needs drive higher profit margins and gives us insight to targeting similar customers.  we are selective in the companies we want to partner with and don't seek to be all things to all customers. 