I don't know what has happened to this forum.... the fire power of Al Zarars were upgraded no doubt... but where does it say that armor was upgraded too ?.... care to post a link... other than adding that thin metal sheet which can be penetrated just by the velocity of incoming rocket... and ERA.
The air gap which is considered good for armor is somewhat like this.
And not massive hallow space like on Al Khalid.... and certainly not like the thin sheet covering Al Zarar turret... In Al Khalid it seems more of a design deficiency on Chinese part... while Al Zarar is more like stupid PR make it look good reason.
There can't be any alternative armor... at best you could do was manufacture the whole turret with HHS/HHA however that would make the weight around 45-50ton... which is not the case here.
There is no place to mount any composite armor plates... only 100mm of solid cast turret... leaves little space for the 3 men men inside excluding the driver.
If you read about composite armor... Its all about space where do you mount the composite armor here and where will the Gunner, Loader, and Commander sit/operate.
You don't have to agree... what I quoted is the data of Type 59 tank... which had its turret covered with a thin sheet giving the impression of wielded turret while it was not.... and ERA was added... the lower part of Hull which had poor armor 20mm easily punched by good caliber weapon let alone an IED... was supplemented with another sheet of thick plate to make up for some more protection as far as armor is concerned.
Comparing this with T-72 is utterly stupid and makes no sense If you saw the video where It took almost 4-5 RPG-29 attacks and still survived to see another day.. while your Al Zarar perished against low quality RPG-7/7ls.
I have always maintained that tanks like Al Zarar and Type 59 are better used as target practice or mine clearing operations/recovery vehicle or APC at best... putting it in a battle field is pure nonsense and ensuring that the crew are cook inside... even the 30mm from A-10 would make holes in its armor... from certain areas.