If you are choosing to join, then the purchase of goods channels can not worry about, there can be two kinds of cases, one channel is offline purchase, some of the neighborhood of the integrated wholesale market purchase, the general city there will be such a wholesale market, or to find a supplier, sign a contract delivery.

The second channel is to buy goods online, this is one of the most convenient way, but the risk is also relatively large, because I do not know whether the quality is guaranteed, generally this I do not recommend, after all, it is food and other things, or security is better.

I hope this answer helps you a little.