Air and land transportation. It's fast.
SF Express is one of the fastest express delivery companies in China. It owns its own cargo plane and has signed contracts with many airlines. It is also one of the most expensive express delivery companies in China. The same city and air transport parts can basically arrive the next day, and can be delivered in remote areas within three days.
The special price is generally taken by land, depending on the distance, usually 2 to 7 days, and the price is cheap. Standard express by air, usually delivered within 48 hours! The price is more expensive.