I know I have said this before, but it obviously didn’t take, so I’ll do it again. Allow me to explain a basic principle of economics.
You make high-quality technical instruments. I am interested in getting my hands on some high-quality technical instruments. In fact, I am sufficiently interested that I will write grants to obtain money to give you in exchange for your high-quality technical instruments. You are interested in obtaining money in exchange for your high-quality technical instruments.
However, and this is the key point, in order to obtain the money to give you in exchange for your high-quality technical instruments, I have to know how much money to give you. Which means you are going to have to tell me the price of the high-quality technical instruments, because my telepathic abilities are not sufficiently advanced to pluck that information out of the aether.
Given that you will eventually have to tell me how much money you want in exchange for your high-quality technical instruments, for the love of God, put the prices on your web page. This is not a subtle and complicated point, and yet, somehow, it has escaped you. Your prices are not state secrets. Nobody is going to declare you an enemy combatant for revealing them, especially to prospective customers.
thank you for your cooperation in this matter.