Generally, there are two kinds of shipping. Domestic shipping is inside of China and the first thing that happens after you buy an item.
International shipping is what's more interesting.
Chinese outbound customs should never be a problem.
Then you have the actual international shipment. This can be via plane, ship or railroad, depending on the shipping service you chose. This can take a while, but you can't influence it.
Then the real test comes: customs. Usually this is in your country, but in the EU it can also be in a different member state if you use triangle shipping. You can influence this step, just ask me.