20 17 what is the most profitable?
20 17 if you want to do business, you must have a good vision, you must find good products or good projects, you must look at the local market situation, and see what projects will be more attractive and what products will be accepted by everyone. It is suggested to start with those small projects, because small projects have small investment, small risks and easy control, and even if they are not done well, they will not lose too much.