Thanks for all the advise , I think i get the idea , as in POLISHED PORCELAIN TILES ARE SUPPOSED TO BE FACTORY POLISHED ( That's why got Glossy / Shinny Finsh ) ... How if it Was UNPOLISHED by the Factory ... I MEAN THEY FORGOT TO POLISHED IT , THEN THE Contractor LAY ON IT without noticing that.... as what i said , its the same Tile ..... It's just UNPOLISHED....

ANnyone here know any DIY way to polished the 2' x 2' Porcelain Tiles ???......

Guys , i think u get me wrong here.....

Hi Jchong : Thanks ,  I think is a Polished tiles , maybe kept in store roome for too long... i can see that some part are Glossy.... hidden underneath the Sheen layer of dirt /dust / plaster / cement , etc.... Will Try to clean it with Water & other Cleaner a Lot a Lot of Times ..... & might use Vineger & water as suggested by some Forum from Oversea....