They couldn't identify conclusively?
"The engineers were able to identify many pieces by their markings. Each piece of steel was originally stenciled in white or yellow with information telling where it came from and where it was going. A sample of the markings can be seen in Figure D-5.
For example, a given piece might be marked, "PONYA WTC 213.00 236B4-9 558 35 TONS." Translated, this meant the column was destined for the Port of New York Authority's World Trade Center as part of contract number 213.00. Its actual piece number was 236B, and it was to be used between floors 4 and 9 in tower B (WTC 2). Its derrick division number was 558, which determined which crane would lift it onto the building and the order in which it was to be erected. Other markings might include the name of the iron works or shipping instructions to those responsible for railway transportation (Gillespie 1999). "
http://911research.wtc7.net/mirrors/guardian2/wtc/WTC_apndxD.htm
Now the link comes from a Truther site. I hope that doesn't make the claim wrong. I mean the claim that each piece could be positively identified. I hope you don't fall into the old debunker tactic of arguing in circles.
Which brings me back to your quote. Which rather than make fun of me on every post just restates my position. Just because you're defending the right position doesn't automatically make your arguments correct. For example this absurd claim that they can't identify the beams, as if they were not marked in the first place.
Of course you also happen to conveniently put my statement out of its original context. Another typical debunker strategy. And last but not least "argumentum ad hominem" on your own words by making fun of me rather than countering my arguments.
How can a simple quote of my words say so much about you.