The website is lame.
There is no choice that says "CONTACT US" which is the universally-understood way of directing a customer to a place to see phone numbers and email forms.
When you *DO* click on "INTERESTED?" there is a HIDDEN email link. You need to hover the cursor CAREFULLY just below the words "Please send us an email for further information." and the email link will appear in red. You have to move the cursor around slowly until the "arrow" icon changes to the "fist" icon. Clicking that hidden link will open an email form.
I guess he wants only the persistent to contact him.
(And Caterpillar is spelled wrong, too.)