firstly - the batteries you are mentioning as dry batteries are not dry - they are surely loaded with a water/acid electrolyte - the only difference is that the cell plates have calcium in them to strengthen them as compared to antimony - as I have posted in other threads this battery needs a voltage cut -off of about 14.5 to 15.0 volts - which your cars alternator does not have, The usual lead antimony battery needs a cut off of 13.5 to 14.0 volts. If our good battery vendors use pure electrolyte - we will surely see greatly increased battery life.
The countries you mention sell batteries complete and ready to install off the shelf, the supplier/distributor puts in the acid electrolyte which is made with the materials that pass some quality tests, distilled water and pure acid. those batteries are no differerent than the ones being sold in Pakistan - its just the materials they use to put them in service are controlled.
If Pakistan followed this practice - there would be less problems of domestic violence and acid accidents as the electrolyte would not be easily available.
Please refer to my other posts - you will see that I have used our desi Exide and AGS batteries to start heavy engines and those batteries have not lost performance in about 4 years now, those eagerly start Mercedes Benz diesels in cold with no performance drop and work like a charm in suzuki cars - Fleet thingie as in my signature