There are hundreds of trucks travelling along the Karakorum Highway, bringing cheap manufactured goods from China, and presumably taking Pakistani goods back. Although the only things that I'm aware of that they produce in Pakistan are guns, apricots and hockey sticks, so I'm not sure if that's right. Certainly it would make for a strange cargo.
If you want to see what the subject of a photo is, view it in small, preview, size and you should be able to see a title if you hover your cursor over it.