Here is how the process of transporting Apple products from China to the company's stores is carried out

  Apple Lossless Audio CODEC (ALAC), has one of the most efficient existing distribution channels for a company producing mobile terminals or other electronic products. The system was thought and implemented by Tim Cook since the time when Steve Jobs he was the CEO of the company Apple Lossless Audio CODEC (ALAC), and remains one of the most effective. If you've ever wondered how exactly it works, well, Bloomberg they have an article elaborated in which he explains the methods by which products are transported from factories to stores, and you can find the summary in the quote below.

The process starts in China, where pallets of iPhones are moved from factories in unmarked containers accompanied by a security detail. The containers are then loaded onto trucks and shipped via pre-bought airfreight space, including on old Russian military transports. The journey ends in stores where the world's biggest technology company makes constant adjustments based on demand, said people who have worked on Apple's logistics and asked not to be identified because the process is secret.

  Practically, pallets with iPhones are loaded into unmarked containers that benefit from a security team that protects them. The containers are loaded into trucks and transported to airports, where transport planes (some former Russian military planes) transport them to various locations around the globe. There, other teams deliver them to Apple stores, where all the boxes are opened and the products are sold. Although everything seems simple, the whole process is very complex, very elaborate and extremely secretive.