Or you can find your own, through the internet or other channels, to find manufacturers who may be able and interested in producing your products, and then go to peace talks. You can't be careless, or you may be cheated.
The same is true of sales. You can recruit agents or invite tenders. Or contact your favorite broker directly. There are many details in it, including agency fee, sales commission and agency mode, such as exclusive agency or general agent. This is different. It's best to find a professional to understand these things first, or let a professional tell you.
Another important point is the brand. You'd better register your own trademark first. I wonder if your company has been established? The establishment of a company should have a brand name, and then design a brand and trademark for the product. These are also done by professional marketing companies, who can formulate a full set of brand strategies for you. Make initial contact with them first, and talk to them more at no cost. They will be very willing to explain a lot to you in order to make you their customer.
Finally, I wish you a smooth sailing ~ rolling in financial resources ~