This is a good request. The first point that needs to be made is that all contexts are different. So, the more you know about the context, the better your sales presentation will be. For example, if you know that a certain company needs a certain product to do something, then you would of course want to emphasize this point.
With this stated, here are some general talking points that will be important.
First, you need to describe your product or service well. Show your audience all the bells and whistles and save the best for last, so that you can leave them impressed.
Second, show why the audience needs your product. In other words, what will it do for them? This is an important point to get across, because people will not buy something if there is no practical pay off.
Third, show them how you beat the competition. Do not be too negative. This will turn some people off. But you do need to show them why your product or service is superior.
Finally, show them how affordable it is. A good sale pitch or presentation will show how people can obtain your product or service without too much sacrifice. Add incentives, if there are any.