By looking at the number of posts on Diapers instead of subject post, the Post heading should read as " Diapers - of sizes and quality"
Coming to the subject, by the way everyone should now know that China never invests in any country unless there is some return.
1. China made herself the all weather friend so that it can make Pakistan as check and balance for Indian advance.
2. China made Karakoram Highway because it needed a port nearer to their western provinces.
3. China invested in Gawadar port because of above reason and China need access to Gulf countries.
4. The autorickshaws run in Lahore are of Chinese made so that Pakistan continue to import from China rather than make on its own.
5. Chinese real estate companies are investing in low income housing schemes in Pakistan, LOL Do you need foreign investment in building houses, where are your architects and masons have gone? who is benefiting from such investment, Chinese companies and its technicians?
These are only samples. Look at the big picture. Pakistan have become dependent on China more politically than economically because it feels isolated in world scene.