Yes, it was the thread that I posted just one week before Chinese New Year, the reasons being:

1) The pictures I posted back then were really very small (unable to see those white films clearly)… so, I decided to enlarge it so that it is clearer.

2) Secondly, I hope more car experts, or more people (with the same problem) could have seen it after CNY & give their valuable comments/ share their experiences… and indeed, there is another Almera customer (that purchased the same car model around the same time) had faced the same problem...  Also, another expert commented that it could be “Aluminium Oxide” & later another expert confirmed that it was indeed “Aluminium Oxide” (based on the powder nature of the white films) - which can potentially causing severe health & life threatening issue to its passengers…as you know, all these extra information were really really important & I must personally thank them for providing those invaluable inputs, because without them,  I would have thought that it was just the “normal dust” (like what the Nissan supervisor told me when I sent my car to them for inspection)… and, I would like to sincerely apologise if this thread has directly, or indirectly annoyed or offended anyone in whatever way, because all I wanted was really additional information & suggestions to solve the problem.

For those who have commented, thank you very much for your invaluable inputs.