Zen Supplies - What Are the Differences Between Black Market and Gray Market?

A lot of people get confused a zen supplies because of the name. So i'm going to my offic trying to learn, for example, if you're buying burrs from shine for five dollar apiece, maybe we shall go to ebe and buy the same burr for 80 cents. We had an office with three dental chairs in alicet, a city in maryland, a three, literally three dental chairs that just put in a room for the hygiene room. And we had 26 bags, you know, thesea black construction bags, they're like this big, 26 bags of expired products and garbage that they don't need. That's where i hate three plus once