First of all, you have to make your products visible to customers and international companies. It is important to prepare a qualitative banner with detailed description of the product. People who are looking for your products, are going to notice it one way or another. You can also participate in Forum discussions, where people share experience and indicate their needs.
Vatslav, all you need to do right now is just to add your products to the website. There are no problems or restrictions with this. If you want, you can use the highlight feature for your product to advertise it all over the world. Nowadays, there are countless numbers of cars in every country all over the world. I insure you, that people would like yo buy good tires at good prices. And, how said Neil, China is the main exporter and importer of tires.
Good luck!
First you add your items to your list, then highlight them for customers to notice them. China is both the main exporter and importer of tires, so good luck!