Well I apologize for any misinformation guys but, when looking for tires for my Hawk, I contacted Erwin at Airtech, who told me he could sell them to me direct or I could order them from Shulman aviation as he had just sent a bunch to him.

I ordered them from Shulman, when they arrived, they were in Intarico packaging and were identical to the originals. So, I assumed ( maybe wrongly) that Airtec simply gets them from Intarico.

Mike