Good that you have planned to start your own business. I don't know much about what you are asking for. But still from my perspective I can give some ideas to get answers for your question. You can make use of social medias and question & answers sites to get ideas regarding how to
manufacture tools for thermal analysis.
Once you manufacture then you don't need to worry about where and how to sell as you are already in the right platform. You can post your products in Bizbilla for free, get connected with buyers and receive inquiries from worldwide.